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A061291
a(1) = 1; a(n+1) = a(1) + a(2)*(a(2) + a(3)*(a(3) +...+a(n-1)*(a(n-1) + a(n))...)).
0
1, 1, 2, 4, 14, 150, 18406, 311742406, 96402927697811206, 9292975819514867485089851568784006
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..10.
CROSSREFS
Sequence in context:
A067209
A134040
A368017
*
A381408
A166105
A000370
Adjacent sequences:
A061288
A061289
A061290
*
A061292
A061293
A061294
KEYWORD
easy
,
nonn
AUTHOR
Leroy Quet
, Jun 04 2001
STATUS
approved
