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Search: id:A112056
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A112056 Odd numbers of the form 4n-1 for which Jacobi-first-non-one(4n-1) differs from Jacobi-first-non-one(4n+1). +0
4
47, 71, 119, 167, 191, 287, 311, 359, 407, 431, 479, 527, 551, 647, 671, 719, 767, 791, 839, 887, 911, 959, 1007, 1031, 1127, 1151, 1199, 1247, 1271, 1319, 1367, 1391, 1487, 1511, 1559, 1607, 1631, 1679, 1727, 1751, 1799, 1847, 1871, 1967 (list; graph; listen)
OFFSET

1,1

COMMENT

Here Jacobi-first-non-one(m) (for odd numbers m) is defined as the first value of i >= 1, for which Jacobi symbol J(i,m) is not +1 (i.e. is either 0 or -1).

FORMULA

a(n) = 4*A112054(n)-1.

CROSSREFS

a(n) = A112057(n)-2 = A112058(n)-1.

Sequence in context: A106874 A023331 A103012 this_sequence A033231 A139923 A097458

Adjacent sequences: A112053 A112054 A112055 this_sequence A112057 A112058 A112059

KEYWORD

nonn

AUTHOR

Antti Karttunen (His-Firstname.His-Surname(AT)iki.fi), Aug 27 2005

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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