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Search: id:A113104
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| A113104 |
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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. |
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+0
1
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| 1, 1, 16, 1251, 481376, 930005021, 9082872004032, 448356882751890343, 111655372144044770735104, 140027604270897805074354921849, 883117855371077265832943940474315776
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OFFSET
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0,3
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PROGRAM
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(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])}
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CROSSREFS
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Cf. A113103, A113106.
Sequence in context: A102807 A160131 A064346 this_sequence A000490 A027648 A016828
Adjacent sequences: A113101 A113102 A113103 this_sequence A113105 A113106 A113107
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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), Oct 14 2005
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