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

Author

Vincenzo Librandi, Oct 17 2011

Keywords

• nonn
• less

Links

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

Crossrefs

Cf. A014052.

Programs

Magma

[Floor((4*n+1/n)^n): n in [1..20]]

Mathematica

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

PARI

a(n)=floor((4*n+1/n)^n) \\ Charles R Greathouse IV, Dec 27 2011