A212455 a(n) = floor(2n*log(2n)).

1, 5, 10, 16, 23, 29, 36, 44, 52, 59, 68, 76, 84, 93, 102, 110, 119, 129, 138, 147, 156, 166, 176, 185, 195, 205, 215, 225, 235, 245, 255, 266, 276, 286, 297, 307, 318, 329, 339, 350, 361, 372, 383, 394, 404, 416, 427

Offset

1,2

Links

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

Mathematica

Table[Floor[2*n*Log[2*n]], {n, 60}] (* Vincenzo Librandi, Feb 13 2013 *)

Prog

(Derive) PROG(y := [], x := 100, LOOP(IF(x = 0, RETURN y), y := ADJOIN(FLOOR(2·x·LOG(2·x)), y), x := x - 1))
(Magma) [Floor(2*n*Log(2*n)): n in [1..80]]; // Vincenzo Librandi, Feb 13 2013
(PARI) a(n)=2*n*log(2*n)\1 \\ Charles R Greathouse IV, Sep 04 2015

Crossrefs

Cf. A050502, A050504, A212456, A212457, A212458, A212459, A212460, A212461, A212462.

Sequence in context: A313938 A313939 A313940 * A052905 A365701 A306351

Adjacent sequences: A212452 A212453 A212454 * A212456 A212457 A212458

Keyword

easy,nonn

Author

Mohammad K. Azarian, May 31 2012

Status

approved