A113104 - OEIS

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A113104

Main diagonal of square table A113103; also, a(n) equals the n-th term in column 0 of the matrix n-th power of triangle A113106.

1, 1, 16, 1251, 481376, 930005021, 9082872004032, 448356882751890343, 111655372144044770735104, 140027604270897805074354921849, 883117855371077265832943940474315776 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	PROG	`(PARI) {a(n, q=5)=local(M=matrix(n+1, n+1)); for(r=1, n+1, for(c=1, r, M[r, c]=if(r==c, 1, if(c>1, (M^q)[r-1, c-1])+(M^q)[r-1, c]))); return((M^n)[n+1, 1])}`
	CROSSREFS	`Cf. A113103, A113106.` `Sequence in context: A160131 A206691 A064346 * A186856 A000490 A027648` `Adjacent sequences: A113101 A113102 A113103 * A113105 A113106 A113107`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Oct 14 2005`

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Last modified February 15 05:38 EST 2012. Contains 205694 sequences.