A132613 - OEIS

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A132613

Column 2 of triangle A132610.

1, 1, 6, 76, 1510, 41121, 1424178, 59857416, 2957282370, 167852629965, 10757980606208, 768190770422700, 60461731639747100, 5199414726620992073, 484974399630368105130, 48763257278485285019472 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	COMMENTS	`Triangle T=A132610 is generated by even matrix powers of itself such that row n+1 of T = row n of T^(2n) with appended '1' for n>=0 with T(0,0)=1.`
	LINKS	`Table of n, a(n) for n=0..15.`
	PROG	`(PARI) {a(n)=local(A=vector(n+3), p); A[1]=1; for(j=1, n-1, p=(n+1)^2-(n-j+1)^2; A=Vec((Polrev(A)+xO(x^p))/(1-x))); A=Vec((Polrev(A)+xO(x^p))/(1-x)); A[p+1]}`
	CROSSREFS	`Cf. A132610 (triangle); other columns: A132611, A132612; A132614.` `Sequence in context: A030044 A145165 A218303 * A009763 A028979 A082629` `Adjacent sequences: A132610 A132611 A132612 * A132614 A132615 A132616`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna, Aug 23 2007`
	STATUS	`approved`

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Last modified May 18 17:41 EDT 2013. Contains 225422 sequences.