A180244 Numbers whose square can be expressed as the sum of a square, a cube and a fourth power of three different numbers.

5, 8, 9, 12, 17, 19, 21, 22, 23, 25, 28, 31, 32, 33, 35, 37, 38, 39, 42, 44, 45, 46, 47, 51, 52, 53, 54, 55, 57, 59, 60, 61, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 82, 83, 84, 85, 87, 88, 89, 90, 91, 93, 95, 96, 97, 98, 99, 100, 101, 103, 105, 107

Offset

1,1

Comments

Subset of A180241, containing terms arising from different bases only.

Links

Table of n, a(n) for n=1..68.

Example

a(5)=17 since 17^2 = 289 = 5^2+2^3+4^4 = 12^2+4^3+3^4; (5,2,4) and (12,4,3) are all different. [Corrected by Bruno Berselli, Aug 25 2010]

Crossrefs

Cf. A180241, A180243.

Sequence in context: A260256 A314573 A066467 * A072833 A229469 A314574

Adjacent sequences: A180241 A180242 A180243 * A180245 A180246 A180247

Keyword

nonn

Author

Carmine Suriano, Aug 19 2010

Status

approved