id:A028375 - OEIS Search Results

Search: id:A028375

Displaying 1-1 of 1 results found.

page 1

Squares of (odd numbers not divisible by 5).

+0
2

1, 9, 49, 81, 121, 169, 289, 361, 441, 529, 729, 841, 961, 1089, 1369, 1521, 1681, 1849, 2209, 2401, 2601, 2809, 3249, 3481, 3721, 3969, 4489, 4761, 5041, 5329, 5929, 6241, 6561, 6889, 7569, 7921, 8281, 8649, 9409, 9801, 10201, 10609, 11449, 11881, 12321 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = (A045572(n))^2.` `a(n) = a(n-1) +2a(n-4) -2a(n-5) -a(n-8) +a(n-9). - R. J. Mathar, Sep 22 2009` `G.f.: x(1+8x+40x^2+32x^3+38x^4+32x^5+40x^6+8x^7+x^8)/ ((1+x)^2 * (x^2+1)^2 * (1-x)^3). - R. J. Mathar, Sep 22 2009`
	CROSSREFS	`Sequence in context: A133478 A032589 A137175 this_sequence A167744 A032598 A110873` `Adjacent sequences: A028372 A028373 A028374 this_sequence A028376 A028377 A028378`
	KEYWORD	`nonn,easy`
	AUTHOR	`ems (nibor(AT)ix.netcom.com)`
	EXTENSIONS	`Definition corrected - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 22 2009`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research