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A076287 Numbers of the form (8^{mr}-1)/(8^r-1) for positive integers m, r. +0
2
1, 9, 65, 73, 513, 585, 4097, 4161, 4681, 32769, 37449, 262145, 262657, 266305, 299593, 2097153, 2396745, 16777217, 16781313, 17043521, 19173961, 134217729, 134480385, 153391689, 1073741825, 1073774593, 1090785345, 1227133513, 8589934593, 9817068105 (list; graph; listen)
OFFSET

1,2

REFERENCES

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

CROSSREFS

Sequence in context: A043426 A038484 A043021 this_sequence A020299 A055284 A081040

Adjacent sequences: A076284 A076285 A076286 this_sequence A076288 A076289 A076290

KEYWORD

nonn

AUTHOR

njas, Nov 06 2002

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Last modified December 3 14:12 EST 2008. Contains 151279 sequences.


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