A140881 floor((log(4)/log(3))^n).

1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 25, 32, 41, 52, 65, 83, 104, 132, 166, 210, 265, 335, 422, 533, 673, 849, 1072, 1353, 1707, 2154, 2718, 3430, 4329, 5462, 6893, 8698, 10975, 13850, 17476, 22053, 27828, 35115, 44310, 55913, 70555, 89030, 112344

Offset

0,4

Links

Table of n, a(n) for n=0..50.

Mathematica

Table[Floor[(Log[4]/Log[3])^n], {n, 0, 50}]

Crossrefs

Sequence in context: A316082 A157046 A017979 * A316081 A238708 A266751

Adjacent sequences: A140878 A140879 A140880 * A140882 A140883 A140884

Keyword

nonn,easy

Author

Roger L. Bagula and Gary W. Adamson, Jul 22 2008

Status

approved