id:A137158 - OEIS Search Results

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G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^(4*2^n).

+0
5

1, 4, 22, 228, 4749, 200240, 17034964, 2913479848, 999402129243, 686662003846640, 944294243796543974, 2598186366278914473948, 14300408328085246335179009, 157434326611214704329370130880 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Equals unsigned column 2 of triangle A137156.`
	PROGRAM	`(PARI) {a(n)=polcoeff(1-sum(k=0, n-1, a(k)x^k/(1+x+xO(x^n))^(2^(k+2)) ), n)}`
	CROSSREFS	`Cf. A137156; A001192, A137157, A137159, A137160.` `Adjacent sequences: A137155 A137156 A137157 this_sequence A137159 A137160 A137161` `Sequence in context: A063380 A113385 A120482 this_sequence A025135 A125801 A119009`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Jan 24 2008`

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

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