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Search: id:A132626
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| 1, 1, 2, 14, 336, 25836, 6251504, 4838830976, 12344615283200, 106978340796778976, 3229124399759665954432, 346176173916459184212747520, 133788163509847808639178273046528
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OFFSET
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0,3
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COMMENT
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Triangle T=A132625 is generated by matrix powers of itself such that row n+1 of T = row n of T^(2^n) 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+1), p); A[1]=1; for(j=1, n, p=2^n-2^(n-j)-j; A=Vec((Polrev(A)+x*O(x^p))/(1-x))); A[p+1]}
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CROSSREFS
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Cf. A132625, A132627.
Sequence in context: A139225 A078675 A094155 this_sequence A101524 A013039 A011809
Adjacent sequences: A132623 A132624 A132625 this_sequence A132627 A132628 A132629
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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 25 2007
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