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A128406 a(n)=(n+1)*2^(n*(n+1)). +0
1
1, 8, 192, 16384, 5242880, 6442450944, 30786325577728, 576460752303423488, 42501298345826806923264, 12379400392853802748991242240 (list; graph; listen)
OFFSET

0,2

COMMENT

Hankel transform of A069723.

FORMULA

a(n)=A095340(n)*A006125(n+1).

CROSSREFS

Sequence in context: A052734 A003435 A071303 this_sequence A003956 A041269 A103500

Adjacent sequences: A128403 A128404 A128405 this_sequence A128407 A128408 A128409

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Mar 01 2007

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Last modified March 17 15:31 EDT 2010. Contains 173524 sequences.


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