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A239311 Floor(((1+sqrt(n))/2)^n). 0
1, 1, 1, 2, 5, 11, 26, 66, 180, 512, 1524, 4734, 15291, 51200, 177256, 633102, 2328306, 8801492, 34147724, 135789397, 552761344, 2300896695, 9783811169, 42459259013, 187899387609, 847288609443, 3890278628308, 18175510564018, 86354070880785, 416985884011492 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..29.

MATHEMATICA

Table[Floor[((1 + Sqrt[n])/2)^n], {n, 0, 30}] (* Giovanni Resta, Mar 15 2014 *)

CROSSREFS

Cf. A125895.

Sequence in context: A300125 A079223 A095892 * A319760 A000664 A242766

Adjacent sequences:  A239308 A239309 A239310 * A239312 A239313 A239314

KEYWORD

nonn

AUTHOR

Jon Perry, Mar 15 2014

STATUS

approved

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Last modified October 22 23:18 EDT 2018. Contains 316518 sequences. (Running on oeis4.)