id:A110013 - OEIS Search Results

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Squares of the form 4p + 5, where p is a prime.

+0
5

25, 49, 81, 121, 169, 289, 361, 441, 529, 729, 961, 1089, 1521, 1681, 1849, 2401, 2809, 3249, 3721, 3969, 5041, 5929, 6241, 6889, 7921, 8281, 8649, 9409, 10201, 11449, 11881, 12321, 12769, 14161, 14641, 16641, 17161, 17689, 18769, 19881, 23409 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The sequence contain all squares of greater of twin primes.`
	FORMULA	`a(n) = 4*A002327(n) + 5 = A088502(n)^2.`
	CROSSREFS	`Cf. A002327, A002328, A088502.` `Cf. A108604.` `Sequence in context: A068874 A018936 A110484 this_sequence A109861 A106564 A104777` `Adjacent sequences: A110010 A110011 A110012 this_sequence A110014 A110015 A110016`
	KEYWORD	`easy,nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Sep 03 2005`
	EXTENSIONS	`Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 04 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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