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A139686 Odd multiplicative orders of 2 modulo primes. 1
3, 11, 5, 23, 35, 9, 39, 11, 51, 7, 15, 83, 95, 99, 37, 29, 119, 131, 135, 155, 21, 179, 183, 191, 43, 73, 231, 239, 243, 251, 299, 25, 303, 45, 323, 359, 121, 371, 375, 411, 419, 431, 55, 443, 91, 153, 117, 483, 491, 495, 515, 519, 531, 543, 29, 575, 611, 615, 639 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A014664, consisting of odd elements.

LINKS

Table of n, a(n) for n=1..59.

FORMULA

a(n) = multiplicative order of 2 modulo A014663(n)

PROG

(PARI) forprime(p=3, 10^5, z=znorder(Mod(2, p)); if(z%2, print1(z, ", ")))

CROSSREFS

Cf. A014664, A014663.

Sequence in context: A084462 A156320 A134969 * A212782 A130537 A212402

Adjacent sequences:  A139683 A139684 A139685 * A139687 A139688 A139689

KEYWORD

nonn

AUTHOR

Max Alekseyev, Apr 29 2008

STATUS

approved

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Last modified November 17 06:06 EST 2019. Contains 329217 sequences. (Running on oeis4.)