A197976 Round((3*n+1/n)^n)

4, 42, 813, 22519, 811368, 35946076, 1888624972, 114746269758, 7912720985079, 610470884770406, 52094956940751710, 4871691779130290166, 495409898474358881327, 54427906182810588386674, 6424384909407981686846705

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..300

Prog

(Magma) [Round((3*n+1/n)^n): n in [1..20]]

Crossrefs

Cf. A014056

Sequence in context: A197948 A196194 A197323 * A338194 A241030 A143990

Adjacent sequences: A197973 A197974 A197975 * A197977 A197978 A197979

Keyword

nonn

Author

Vincenzo Librandi, Oct 20 2011

Status

approved