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Search: id:A082426
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A082426 a(1)=1, a(n)=n*(a(n-1)+a(n-2)+...+a(2)+a(1)) + 2. +0
1
1, 3, 10, 49, 301, 2161, 17641, 161281, 1632961, 18144001, 219542401, 2874009601, 40475635201, 610248038401, 9807557760001, 167382319104001, 3023343138816001, 57621363351552001, 1155628453883904001 (list; graph; listen)
OFFSET

0,2

FORMULA

for n>=2 a(n) = ceiling(n*(2e-9/2)*n!)

CROSSREFS

Cf. A074143.

Sequence in context: A140964 A005921 A143921 this_sequence A054381 A102088 A088142

Adjacent sequences: A082423 A082424 A082425 this_sequence A082427 A082428 A082429

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 24 2003

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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