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A046896 Square elements of A046895. 0
1, 9, 3969, 5041, 9409, 89401, 35010889, 478953225, 741091729, 282110761881, 370672751241, 1930979822409, 5548799536921, 6445713623281, 81193957971361 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

No other terms in first 200000 terms of A046895, though sequence is believed to be infinite.

No other terms in first 8000000 terms of A046895. - T. D. Noe, Mar 11 2009

LINKS

Table of n, a(n) for n=0..14.

MATHEMATICA

s = 0; Reap[ Do[s = s + SquaresR[4, n]; If[IntegerQ[Sqrt[s]], Print[{n, s}]; Sow[s]], {n, 0, 5*10^6}]][[2, 1]] (* Jean-Fran├žois Alcover, Jul 02 2012 *)

CROSSREFS

Sequence in context: A162013 A222948 A281876 * A036516 A024126 A163018

Adjacent sequences:  A046893 A046894 A046895 * A046897 A046898 A046899

KEYWORD

nonn,easy,nice

AUTHOR

Vinay Vaishampayan and N. J. A. Sloane

EXTENSIONS

Extended by T. D. Noe, Mar 11 2009

STATUS

approved

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Last modified December 14 14:20 EST 2019. Contains 329979 sequences. (Running on oeis4.)