https://en.formulasearchengine.com/w/api.php?action=feedcontributions&feedformat=atom&user=198.36.0.0%2F16 2026-07-13T01:52:20Z User contributions MediaWiki 1.47.0-wmf.7 https://en.formulasearchengine.com/w/index.php?title=Well_kill&diff=253722 2015-01-11T06:14:17Z

<p>198.36.39.181: corrected spelling</p> <hr /> <div>Ed is what individuals contact me and my spouse doesn't like it at all. Her family lives in Ohio. Doing ballet is something she would by no means give up. Office supervising is what she does for a residing.&lt;br&gt;&lt;br&gt;Also visit my blog real psychic readings ([http://www.Indosfriends.com/profile-253/info/ indosfriends.com])</div>

198.36.39.181 https://en.formulasearchengine.com/w/index.php?title=Wet_Bulb_Globe_Temperature&diff=7929 2013-11-08T18:09:30Z

<p>198.36.94.34: </p> <hr /> <div>[[Image:Centered heptagonal number.svg|240px|right]]<br /> <br /> A '''centered heptagonal number''' is a [[centered number|centered]] [[figurate number]] that represents a [[heptagon]] with a dot in the center and all other dots surrounding the center dot in successive heptagonal layers. The centered heptagonal number for ''n'' is given by the formula <br /> <br /> :&lt;math&gt;{7n^2 - 7n + 2}\over2&lt;/math&gt;.<br /> <br /> This can also be calculated by multiplying the [[triangular number]] for (''n'' - 1) by 7, then adding 1.<br /> <br /> The first few centered heptagonal numbers are<br /> <br /> [[1 (number)|1]], [[8 (number)|8]], [[22 (number)|22]], [[43 (number)|43]], [[71 (number)|71]], [[106 (number)|106]], [[148 (number)|148]], [[197 (number)|197]], 253, 316, 386, 463, 547, 638, 736, 841, 953 {{OEIS|id=A069099}}<br /> <br /> Centered heptagonal numbers alternate parity in the pattern odd-even-even-odd.<br /> <br /> == Centered heptagonal prime ==<br /> <br /> A '''centered heptagonal prime''' is a centered heptagonal number that is [[prime number|prime]]. The first few centered heptagonal primes are<br /> :43, 71, 197, 463, 547, 953, 1471, 1933, 2647, 2843, 3697, ... {{OEIS|A144974}}<br /> and centered heptagonal [[twin prime]] numbers are<br /> :43, 71, 197, 463, 1933, 5741, 8233, 9283, 11173, 14561, 34651, ... {{OEIS|A144975}}.<br /> <br /> ==See also==<br /> *Regular [[heptagonal number]].<br /> <br /> {{Classes of natural numbers}}<br /> [[Category:Figurate numbers]]</div>

198.36.94.34 https://en.formulasearchengine.com/w/index.php?title=Sparse_grid&diff=233020 2011-11-16T08:08:41Z

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