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Search: id:A130288
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| A130288 |
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Record indices of A130280: integers n>0 for which min{ m>1 | (2n+1)^2(m^2-1)+1 is a square} < oo but bigger than for all preceding n. |
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4
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| 1, 2, 11, 14, 18, 23, 27, 34, 38, 44, 54, 59, 74, 158, 179, 284, 524
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Most elements of this sequence seem to be 1,2 or 4 times a prime.
Corresponding values of A130280 are given in A130289. - M. F. Hasler (Maximilian.Hasler(AT)gmail.com), May 24 2007
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PROGRAM
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(PARI) A130288(L=999, S=1)={local(R, T); for(n=S, L, if(issquare(n) | R>=T=A130280(n), next); print1(n", "); R=T)}
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CROSSREFS
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Cf. A084702, A130280, A130283, A130284.
Cf. A084702, A130280, A130283, A130284, A130289.
Sequence in context: A073914 A041971 A106660 this_sequence A031192 A034039 A077475
Adjacent sequences: A130285 A130286 A130287 this_sequence A130289 A130290 A130291
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KEYWORD
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nonn
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AUTHOR
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M. F. Hasler (Maximilian.Hasler(AT)gmail.com), May 24 2007
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