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A001674 a(n) = floor(sqrt( 2*Pi )^n). 4
1, 2, 6, 15, 39, 98, 248, 621, 1558, 3906, 9792, 24546, 61528, 154230, 386597, 969056, 2429063, 6088760, 15262258, 38256809, 95895600, 240374623, 602529828, 1510318305, 3785806567, 9489609784, 23786924200, 59624976768, 149457652641, 374634777972 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

T. D. Noe, Table of n, a(n) for n = 0..500

OEIS index entries related to powers of irrational constants.

MATHEMATICA

Table[Floor[Sqrt[2*Pi]^n], {n, 0, 50}] (* T. D. Noe, Aug 09 2012 *)

PROG

(PARI) a(n)=(2*Pi)^(n/2)\1 \\ M. F. Hasler, May 29 2018

CROSSREFS

Cf. A001674 (ceiling sqrt(2 Pi)^n), A017910 (floor sqrt(2)^n), A000149 (floor e^n), A001672 (floor Pi^n), A062541 (floor (Pi*e)^n), A121831 (floor (Pi+e)^n), A032739 (floor (Pi/e)^n), A014217 (floor ((1+sqrt(5))/2)^n).

Sequence in context: A120846 A101522 A094969 * A121331 A026270 A321646

Adjacent sequences:  A001671 A001672 A001673 * A001675 A001676 A001677

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Edited by M. F. Hasler, May 29 2018

STATUS

approved

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Last modified August 23 22:45 EDT 2019. Contains 326254 sequences. (Running on oeis4.)