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1,1
Sequence is non-monotonic and some entries may be duplicate, e.g., a(8)=a(15)=467.
Table of n, a(n) for n=1..45.
A108657[n_]:=A108656[[n-2]]*n^2+A108656[[n-1]]*n+A108656[[n]]
Cf. A108656.
Sequence in context: A137472 A065932 A143882 * A116325 A228021 A053998
Adjacent sequences: A108654 A108655 A108656 * A108658 A108659 A108660
nonn
Zak Seidov, Jun 14 2005
approved