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A171410
1+5*10^n+100^n.
2
7, 151, 10501, 1005001, 100050001, 10000500001, 1000005000001, 100000050000001, 10000000500000001, 1000000005000000001, 100000000050000000001, 10000000000500000000001
OFFSET
0,1
FORMULA
From Chai Wah Wu, May 30 2016: (Start)
a(n) = 111*a(n-1) - 1110*a(n-2) + 1000*a(n-3) for n > 2.
G.f.: (1510*x^2 - 626*x + 7)/((1 - x)*(1 - 10*x)*(1 - 100*x)). (End)
E.g.f.: (1 + 5*exp(9*x) + exp(99*x))*exp(x). - Ilya Gutkovskiy, May 30 2016
CROSSREFS
Sequence in context: A202558 A159659 A100868 * A277122 A351147 A351609
KEYWORD
easy,nonn
AUTHOR
Jason Earls, Dec 08 2009
STATUS
approved