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Search: id:A076951
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| A076951 |
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Smallest k > 0 such that nk-1 is an n-th power, or 0 if no such number exists. |
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+0
3
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| 1, 1, 3, 0, 205, 0, 39991, 0, 57, 5905, 9090909091, 0, 8230246567621, 0, 10371206370520815, 0, 17361641481138401521, 0, 37275544492386193492507, 0, 22706531343006, 0, 326583187044036098379401213863, 0, 45035996273705
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OFFSET
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1,3
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COMMENT
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p divides a(p) for odd primes p. a(p) = A081209(p-1) = p*A081215(p-1) for odd primes p. a(p)/p = A081215(p-1) = {1,41,5713,826446281,633095889817,1021273028302258913,...} - Alexander Adamchuk (alex(AT)kolmogorov.com), Nov 12 2006
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CROSSREFS
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Cf. A076952.
Cf. A081209, A081215.
Sequence in context: A013243 A013244 A013325 this_sequence A060282 A060283 A087345
Adjacent sequences: A076948 A076949 A076950 this_sequence A076952 A076953 A076954
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 20 2002
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EXTENSIONS
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More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Jan 21 2003
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