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A288676
Numbers k such that A108394(k) is not a prime.
1
5, 22, 25, 26, 31, 36, 39
OFFSET
1,1
COMMENTS
A288641(a(n)) > A108394(a(n)).
a(8) > 61.
LINKS
Eric Weisstein's World of Mathematics, Goebel's Sequence
EXAMPLE
a(1) = 5. So A288641(5) > A108394(5), that is 251 > 214.
CROSSREFS
Sequence in context: A229801 A045015 A283758 * A085101 A350120 A290510
KEYWORD
nonn,more
AUTHOR
Seiichi Manyama, Jun 13 2017
STATUS
approved