A102099 - OEIS

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A102099

Column 1 of triangular matrix A102098, which shifts upward to exclude the main diagonal under matrix cube.

0, 2, 8, 152, 6200, 442552, 49399320, 8003532512, 1784040237288, 525504809786112, 198213959637435608, 93352856625931514024, 53776417402985961020144, 37244016639064540041311632 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`Column 0 of A102098 is A082162.`
	PROG	`(PARI) {a(n)=local(A=matrix(2, 2), B); A[1, 1]=1; for(m=2, n+1, B=matrix(m, m); for(i=1, m, for(j=1, i, if(j==i, B[i, j]=j, if(j==1, B[i, j]=(A^3)[i-1, 1], B[i, j]=(A^3)[i-1, j])); )); A=B); return(A[n+1, 2])}`
	CROSSREFS	`Cf. A102098, A082162, A102100.` `Sequence in context: A079613 A091299 A007314 * A012298 A009596 A012571` `Adjacent sequences: A102096 A102097 A102098 * A102100 A102101 A102102`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Dec 29 2004`

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Last modified February 14 13:08 EST 2012. Contains 205623 sequences.