OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
f[n_] := Floor[(1+4^n)/(1+2 n)]
Table[f[n], {n, 1, 40}] (* A191637 *)
PROG
(Magma) [Floor((1+4^n)/(1+2*n)): n in [1..30] ]; // Vincenzo Librandi, Sep 10 2011
(Maxima) A191637(n):=floor((1+4^n)/(1+2*n))$ makelist(A191637(n), n, 1, 30); /* Martin Ettl, Oct 25 2012 */
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jun 09 2011
STATUS
approved