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A106842
(1 + n + n^2)^n.
0
1, 3, 49, 2197, 194481, 28629151, 6321363049, 1954897493193, 806460091894081, 427929800129788411, 283942098606901565601, 230339304218442143770717, 224282727500720205065439601, 258145266804692077858261512663
OFFSET
1,2
MATHEMATICA
Table[(1+n+n^2)^n, {n, 0, 15}] (* Harvey P. Dale, Nov 21 2022 *)
CROSSREFS
Equals A002061(n+1)^n.
Sequence in context: A012040 A012223 A012100 * A298697 A326218 A203743
KEYWORD
nonn
AUTHOR
Ralf Stephan, May 05 2005
STATUS
approved