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A135911 Number of 4-tuples (x,y,z,t) of nonnegative integers such that x^2+y^3+z^4+t^5 = n. 5
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

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

LINKS

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

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

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Last modified August 21 06:54 EDT 2019. Contains 326162 sequences. (Running on oeis4.)