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A197717
a(n) = ceiling((3n+1/n)^n).
6
4, 43, 814, 22519, 811369, 35946076, 1888624972, 114746269758, 7912720985080, 610470884770407, 52094956940751711, 4871691779130290167, 495409898474358881327, 54427906182810588386674, 6424384909407981686846706, 810777549111969648699638307, 108944087230453697240059783284
OFFSET
1,1
LINKS
MATHEMATICA
Table[Ceiling[(3n+1/n)^n], {n, 20}] (* Harvey P. Dale, Mar 04 2023 *)
PROG
(Magma) [Ceiling((3*n+1/n)^n): n in [1..20]]
(PARI) a(n)=ceil((3*n+1/n)^n) \\ Charles R Greathouse IV, Nov 21 2011
CROSSREFS
Cf. A014058.
Sequence in context: A277639 A326432 A074702 * A277456 A377743 A317140
KEYWORD
nonn,less
AUTHOR
Vincenzo Librandi, Oct 18 2011
STATUS
approved