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1, 2, 4, 6, 12, 36, 120, 240, 720, 2520, 10080, 30240, 120960, 725760, 1814400, 7257600, 26611200, 159667200, 958003200, 4790016000, 10378368000, 62270208000, 261534873600, 1307674368000, 7846046208000, 62768369664000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n) equals smallest integer m>0 such that A086435(m^2)=n-1. [From Max Alekseyev (maxale(AT)gmail.com), Jul 16 2009]
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CROSSREFS
| Cf. A081454, A081455, A081456, A083489.
Sequence in context: A143474 A087902 A180213 * A127105 A196444 A110980
Adjacent sequences: A081454 A081455 A081456 * A081458 A081459 A081460
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 21 2003
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EXTENSIONS
| More terms from David Garber (garber(AT)math.huji.ac.il), Jun 17 2003
More terms from Ray G. Opao (1260(AT)email.com), Aug 01 2005
Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 12 2006
More terms from Max Alekseyev (maxale(AT)gmail.com), Jun 05, Jul 16 2009
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