A230842 Values of y such that x^2 + y^2 = 61^n with x and y coprime and 0 < x < y.

6, 60, 415, 3479, 27474, 194220, 1752665, 10361041, 108089046, 665045051, 6449019055, 45629658360, 371682946434, 3000926368429, 20605153668425, 190323205453920, 1089586196530086, 11672337637546091, 73603293662217846, 692487869011494600, 5011061854350480605

Offset

1,1

Comments

The corresponding x-values are in A230841.

Links

Table of n, a(n) for n=1..21.

Example

a(3)=415 because 234^2+415^2=226981=61^3.

Mathematica

Table[Select[PowersRepresentations[61^n, 2, 2], CoprimeQ[#[[1]], #[[2]]] &][[1, 2]], {n, 21}] (* T. D. Noe, Nov 04 2013 *)

Crossrefs

Cf. A230841.

Cf. A188949, A230623, A230645, A230711, A230713, A230744, A230760.

Sequence in context: A260345 A028244 A259817 * A353039 A000911 A076100

Adjacent sequences: A230839 A230840 A230841 * A230843 A230844 A230845

Keyword

nonn

Author

Colin Barker, Oct 31 2013

Status

approved