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A130134 Even terms in A015922. 5
2, 4, 8, 248, 17608, 90148, 106978, 253828, 364808, 1642798, 1926088, 6176264, 21879938, 30484408, 34634428, 96593698, 134396408, 223622468, 283585928, 327327388, 457961188, 809965148, 1709420344, 1815124028, 2164392968, 2360006456, 2431619908, 2500777828, 2922255548, 3888155428, 5672481928 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also, the even terms of A033554.

LINKS

Max Alekseyev, Table of n, a(n) for n = 1..314 (all terms below 10^15)

PROG

(PARI) isok(n) = !(n % 2) && (Mod(2^n, n) == Mod(8, n)); \\ Michel Marcus, Oct 13 2013

CROSSREFS

Cf. A015922, A130133.

Sequence in context: A012648 A130133 A033555 * A082613 A013553 A302864

Adjacent sequences:  A130131 A130132 A130133 * A130135 A130136 A130137

KEYWORD

nonn

AUTHOR

Zak Seidov, May 12 2007

EXTENSIONS

a(8)-a(9) from Michel Marcus, Oct 13 2013

Terms a(10) onward from Max Alekseyev, Oct 11 2016

STATUS

approved

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Last modified June 4 10:43 EDT 2020. Contains 334825 sequences. (Running on oeis4.)