id:A157317 - OEIS Search Results

Search: id:A157317

Displaying 1-1 of 1 results found.

page 1

G.f. A(x) = Product_{n>=1} 1/(1 - 2^(n^2)*x^n).

+0
1

1, 2, 20, 552, 66896, 33696416, 68788184384, 563088100346496, 18447871370917745920, 2417888544016592098109952, 1267655436300759217689238066176, 2658458526919399457630738994278213632 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`G.f.: A(x) = 1 + 2x + 20x^2 + 552x^3 + 66896x^4 + 33696416*x^5 +...`
	PROGRAM	`(PARI) a(n)=polcoeff(1/prod(k=1, n, 1-2^(k^2)x^k+xO(x^n)), n)`
	CROSSREFS	`Cf. A000041.` `Sequence in context: A009344 A009699 A101927 this_sequence A009399 A009182 A015207` `Adjacent sequences: A157314 A157315 A157316 this_sequence A157318 A157319 A157320`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Mar 17 2009`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research