A129790 a(n) = ceiling(6^n/n).

6, 18, 72, 324, 1556, 7776, 39991, 209952, 1119744, 6046618, 32981551, 181398528, 1004668771, 5597440293, 31345665639, 176319369216, 995685849691, 5642219814912, 32071565263711, 182807922003149, 1044616697160851

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Prog

(Magma) [Ceiling(6^n/n):n in [1..30]]; // Vincenzo Librandi, Oct 03 2011

Crossrefs

Cf. A053638.

Sequence in context: A027266 A242278 A129796 * A121156 A057051 A318069

Adjacent sequences: A129787 A129788 A129789 * A129791 A129792 A129793

Keyword

nonn,easy

Author

Mohammad K. Azarian, May 18 2007

Status

approved