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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
OFFSET
1,3
CROSSREFS
Sequence in context: A067209 A134040 A368017 * A166105 A000370 A326941
KEYWORD
easy,nonn
AUTHOR
Leroy Quet, Jun 04 2001
STATUS
approved