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Search: id:A132613
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| 1, 1, 6, 76, 1510, 41121, 1424178, 59857416, 2957282370, 167852629965, 10757980606208, 768190770422700, 60461731639747100, 5199414726620992073, 484974399630368105130, 48763257278485285019472
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OFFSET
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0,3
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COMMENT
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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.
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PROGRAM
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(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)+x*O(x^p))/(1-x))); A=Vec((Polrev(A)+x*O(x^p))/(1-x)); A[p+1]}
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CROSSREFS
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Cf. A132610 (triangle); other columns: A132611, A132612; A132614.
Sequence in context: A116874 A030044 A145165 this_sequence A009763 A028979 A082629
Adjacent sequences: A132610 A132611 A132612 this_sequence A132614 A132615 A132616
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Aug 23 2007
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