OFFSET
0,2
LINKS
FORMULA
a(0) = 1, a(n) = 5*7^(n-1) for n>0.
a(n) = Sum_{k=0..n} A193722(n,k)*2^k.
PROG
(PARI) a(n)=if(n, 5*7^(n-1), 1) \\ Charles R Greathouse IV, Nov 21 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Oct 05 2011
STATUS
approved