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Search: id:A129327
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A129327 Second column of PE^3. +0
14
0, 1, 6, 36, 228, 1545, 11196, 86457, 708504, 6136830, 55976430, 535904259, 5369146272, 56145107577, 611336534802, 6916529431620, 81152874393168, 985767316792449, 12376996566040980, 160399065135692073 (list; graph; listen)
OFFSET

0,3

COMMENT

Base matrix in A011971 Second power in A078937 Third power in A078938 Fourth power in A078939

FORMULA

PE=exp(matpascal(5))/exp(1); A = PE^3; a(n)= A[ n,2 ] with exact integer arithmetic: PE=exp(matpascal(5)-matid(6)); A = PE^3; a(n)=A[ n,2]

MAPLE

A056857 := proc(n, c) combinat[bell](n-1-c)*binomial(n-1, c) ; end: A078937 := proc(n, c) add( A056857(n, k)*A056857(k+1, c), k=0..n) ; end: A078938 := proc(n, c) add( A078937(n, k)*A056857(k+1, c), k=0..n) ; end: A129327 := proc(n) A078938(n+1, 1) ; end: seq(A129327(n), n=0..27) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 30 2008

CROSSREFS

Cf. A056857, A078937, A078938, A078944, A078945, A000110.

Cf. A078937, A078938, A129323, A129324, A129325, A027710.

Cf. A129327, A129328, A129329, A078944, A129331, A129332, A129333.

Sequence in context: A004319 A129324 A085687 this_sequence A099252 A057395 A066053

Adjacent sequences: A129324 A129325 A129326 this_sequence A129328 A129329 A129330

KEYWORD

nonn,easy

AUTHOR

Gottfried Helms (helms(AT)uni-kassel.de), Apr 08 2007

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 30 2008

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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