



0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2
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OFFSET

1,129


COMMENTS

The positions where k = 0, 1, 2, ... occur for the first time are 1, 23, 129, 517, 2049, 4613, 33097, 33793, ... factorized as: 1, 23, 3*43, 11*47, 3*683, 7*659, 23*1439, 47*719, ...  Antti Karttunen, Aug 18 2017


LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000 (also based on the bfile of A003313)


FORMULA

It seems that sum(k = 1, n, a(k)) * log(n)/n^2 > c (0.006 < c < 0.01).


CROSSREFS

Cf. A003313, A064097, A076091.
Sequence in context: A110515 A071936 A005088 * A084904 A084928 A112316
Adjacent sequences: A076139 A076140 A076141 * A076143 A076144 A076145


KEYWORD

nonn


AUTHOR

Benoit Cloitre, Oct 31 2002


EXTENSIONS

Extended to 129 terms by Antti Karttunen, Aug 18 2017


STATUS

approved



