A197324 a(n) = floor((4*n+1/n)^n).

5, 72, 1876, 69729, 3363232, 199205126, 13982257728, 1134344816184, 104416147080711, 10750872867074586, 1224163955433850943, 152733676280699540998, 20719969553916698313304, 3036565789908881887393113, 478082645334119488823777214, 80475210949356295594385157620

Offset

1,1

Links

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

Mathematica

Table[Floor[(4n+1/n)^n], {n, 20}] (* Harvey P. Dale, Mar 23 2012 *)

Prog

(Magma) [Floor((4*n+1/n)^n): n in [1..20]]
(PARI) a(n)=floor((4*n+1/n)^n) \\ Charles R Greathouse IV, Dec 27 2011

Crossrefs

Cf. A014052.

Sequence in context: A079340 A268782 A282788 * A197977 A362679 A307932

Adjacent sequences: A197321 A197322 A197323 * A197325 A197326 A197327

Keyword

nonn,less

Author

Vincenzo Librandi, Oct 17 2011

Status

approved