OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..400
FORMULA
a(n) = C(n + 9, 9)*7^n.
PROG
(Magma) [Binomial(n+9, 9)*7^n: n in [0..20]]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Oct 13 2011
STATUS
approved