A135911 Number of 4-tuples (x,y,z,t) of nonnegative integers such that x^2+y^3+z^4+t^5 = n.

1, 4, 6, 4, 2, 3, 3, 1, 1, 4, 6, 4, 2, 2, 1, 0, 2, 7, 8, 3, 1, 2, 1, 0, 2, 6, 7, 5, 5, 4, 1, 1, 4, 8, 7, 2, 3, 7, 5, 1, 2, 5, 5, 4, 6, 5, 1, 1, 3, 7, 7, 3, 5, 6, 2, 0, 2, 5, 5, 4, 5, 2, 0, 2, 6, 11, 9, 3, 4, 6, 2, 0, 2, 5, 5, 3, 4, 3, 1, 2, 4, 10, 11, 7, 6, 4, 2, 1, 1, 6, 9, 7, 5, 3, 1, 1, 4, 8, 8, 3, 4

Offset

0,2

Links

T. D. Noe, Table of n, a(n) for n = 0..10000

K. B. Ford, The representation of numbers as sums of unlike powers II, J. Amer. Math. Soc., 9 (1996), 919-940.

Crossrefs

Cf. A045634, A135910, A135912.

Cf. A111151 (n such that a(n)=0).

Sequence in context: A199358 A131890 A062751 * A164356 A181774 A291379

Adjacent sequences: A135908 A135909 A135910 * A135912 A135913 A135914

Keyword

nonn

Author

N. J. A. Sloane, Mar 07 2008

Status

approved