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A005731 Related to n-th powers of polynomials.
(Formerly M0427)
2
1, 1, 2, 3, 2, 5, 2, 21, 2, 3, 1, 55, 3, 13, 2, 21, 2, 85, 1, 57, 2, 1, 1, 8855, 2, 15, 2, 39, 1, 29, 10, 651, 2, 1, 2, 935, 1, 37, 2, 399, 1, 2665, 1, 129, 2, 1, 1, 416185, 2, 21, 2, 15, 1, 4505, 2, 39, 14, 1, 1, 357599, 1, 305, 2, 651, 6, 5, 1, 201, 2, 39, 1, 10687985, 2, 73, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

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

T. Chinburg and M. Henriksen, Sums of k-th powers in the ring of polynomials with integer coefficients, Acta Arithmetica, 29 (1976), 227-250.

FORMULA

a(n) = A005729(n)/A005730(n).

CROSSREFS

Cf. A005729, A005730.

Sequence in context: A271774 A331602 A118176 * A132962 A046145 A103309

Adjacent sequences:  A005728 A005729 A005730 * A005732 A005733 A005734

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Emeric Deutsch, Jan 24 2005

STATUS

approved

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Last modified February 19 00:35 EST 2020. Contains 332028 sequences. (Running on oeis4.)