OFFSET
0,2
COMMENTS
Indices m for which A025649(m) is 0. - Michel Marcus, Jan 10 2018
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 0..10000
EXAMPLE
PROG
(PARI) a(n)=my(N=1); n+1+sum(i=1, n, logint(N*=10, 4)); \\ Charles R Greathouse IV, Jan 10 2018
(PARI) first(n)=my(s, N=1/10); vector(n+1, i, s+=logint(N*=10, 4)+1) \\ Charles R Greathouse IV, Jan 10 2018
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
Offset changed by Michel Marcus, Jan 10 2018
STATUS
approved