A274204 Numbers n such that there is no cubefree number that is the sum of two nonzero squares in exactly n ways.

7, 10, 11, 15, 17, 19, 20, 21, 22, 23, 25, 26, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 98, 99, 100

Offset

1,1

Links

Table of n, a(n) for n=1..75.

Crossrefs

Cf. A000404, A004709.

Sequence in context: A347393 A088769 A057986 * A306929 A105140 A107018

Adjacent sequences: A274201 A274202 A274203 * A274205 A274206 A274207

Keyword

nonn

Author

Altug Alkan, Jun 13 2016

Extensions

Terms checked by Giovanni Resta, Jun 13 2016

Status

approved