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Search: id:A129331
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A129331 Second column of PE^4. +0
14
0, 1, 8, 60, 464, 3780, 32568, 296492, 2845088, 28695060, 303334920, 3351877628, 38622668400, 463036981732, 5764038605528, 74365952622540, 992720923710272, 13690497077256628, 194777994524434344, 2855149354656290716 (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^4; a(n)= A[ n,2 ] with exact integer arithmetic: PE=exp(matpascal(5)-matid(6)); A = PE^4; 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: A078939 := proc(n, c) add( A078938(n, k)*A056857(k+1, c), k=0..n) ; end: A129331 := proc(n) A078939(n+1, 1) ; end: seq(A129331(n), n=0..25) ; - 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: A129325 A001267 A099156 this_sequence A005990 A099337 A075147

Adjacent sequences: A129328 A129329 A129330 this_sequence A129332 A129333 A129334

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 26 13:41 EDT 2008. Contains 142293 sequences.


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