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A288676 Numbers k such that A108394(k) is not a prime. 1
5, 22, 25, 26, 31, 36, 39 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A288641(a(n)) > A108394(a(n)).

a(8) > 61.

LINKS

Table of n, a(n) for n=1..7.

Eric Weisstein's World of Mathematics, Goebel's Sequence

EXAMPLE

a(1) = 5. So A288641(5) > A108394(5), that is 251 > 214.

CROSSREFS

Cf. A108394, A288641.

Sequence in context: A229801 A045015 A283758 * A085101 A290510 A184724

Adjacent sequences:  A288673 A288674 A288675 * A288677 A288678 A288679

KEYWORD

nonn,more

AUTHOR

Seiichi Manyama, Jun 13 2017

STATUS

approved

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Last modified December 3 05:05 EST 2021. Contains 349445 sequences. (Running on oeis4.)