OFFSET
0,2
COMMENTS
Partial sums of A014925.
LINKS
Eric Weisstein's World of Mathematics, Repunit
Index entries for linear recurrences with constant coefficients, signature (22,-141,220,-100)
FORMULA
MATHEMATICA
LinearRecurrence[{22, -141, 220, -100}, {1, 22, 343, 4664}, 20]
Table[(9 n (10^(n + 2) + 1) + 7 10^(n + 2) + 29)/729, {n, 0, 19}]
PROG
(PARI) A272525(n)=(9*n+7)*(10^(n+2)+1)\729+1 \\ M. F. Hasler, Nov 02 2016
CROSSREFS
KEYWORD
base,nonn,easy
AUTHOR
Ilya Gutkovskiy, May 02 2016
STATUS
approved