A179439 Positive numbers not of the form x^5 - y^2.

2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 17, 20, 21, 22, 24, 25, 26, 27, 29, 30, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85

Offset

1,1

Links

Table of n, a(n) for n=1..72.

Example

19 can be expressed as 55^5 - 22434^2, so 19 is not in the sequence.

Crossrefs

Cf. A152412, A177760, A177761, A177764, A177765, A177859.

Sequence in context: A049533 A052419 A257458 * A047421 A004777 A059561

Adjacent sequences: A179436 A179437 A179438 * A179440 A179441 A179442

Keyword

nonn

Author

Artur Jasinski, Jul 14 2010

Extensions

Edited by Arkadiusz Wesolowski, Jan 05 2013

Status

approved