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A001698 a(n) = ceiling(sqrt( 2*Pi )^n). 3
1, 3, 7, 16, 40, 99, 249, 622, 1559, 3907, 9793, 24547, 61529, 154231, 386598, 969057, 2429064, 6088761, 15262259, 38256810, 95895601, 240374624, 602529829, 1510318306, 3785806568, 9489609785, 23786924201, 59624976769, 149457652642, 374634777973 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

Table[Ceiling[Sqrt[2Pi]^n], {n, 0, 50}] (* Stefan Steinerberger, Apr 14 2006 *)

CROSSREFS

Sequence in context: A147321 A103030 A263316 * A261236 A029761 A009337

Adjacent sequences:  A001695 A001696 A001697 * A001699 A001700 A001701

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified October 21 10:33 EDT 2018. Contains 316414 sequences. (Running on oeis4.)