

A076270


Numbers of the form (3^{mr}1)/(3^r1) for positive integers m, r.


1



1, 4, 10, 13, 28, 40, 82, 91, 121, 244, 364, 730, 757, 820, 1093, 2188, 3280, 6562, 6643, 7381, 9841, 19684, 20440, 29524, 59050, 59293, 66430, 88573, 177148, 265720, 531442, 532171, 538084, 551881, 597871, 797161, 1594324, 2391484, 4782970, 4785157, 5380840
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OFFSET

1,2


REFERENCES

T. Chinburg and M. Henriksen, Sums of kth powers in the ring of polynomials with integer coefficients, Acta Arithmetica, 29 (1976), 227250.


LINKS

Table of n, a(n) for n=1..41.


MAPLE

f := proc(p) local m, r, t1; t1 := {}; for m from 1 to 10 do for r from 1 to 10 do t1 := {op(t1), (p^(m*r)1)/(p^r1)}; od: od: sort(convert(t1, list)); end; f(3); # very crude!


CROSSREFS

Cf. A064896, A076275, A076284A076289.
Sequence in context: A191107 A173931 A173793 * A032821 A101576 A179134
Adjacent sequences: A076267 A076268 A076269 * A076271 A076272 A076273


KEYWORD

nonn


AUTHOR

N. J. A. Sloane, Nov 06 2002


STATUS

approved



