A316504 Numbers n such that A090086(n+1) > n+1.

0, 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 37, 41, 47, 53, 59, 71, 83, 89, 101, 109, 139, 149, 157, 179, 199, 307, 461, 571

Offset

1,3

Comments

Probably complete.

Numbers n such that A090086(n+1) = A007535(n+1).

For n > 1, if A090086(n+1) > n+1, then n is a prime.

Links

Table of n, a(n) for n=1..30.

Prog

(PARI) a090086(n) = {forcomposite(k=2, , if (Mod(n, k)^(k-1) == 1, return (k)); ); }
isok(n) = a090086(n+1) > n+1; \\ Michel Marcus, Aug 12 2018

Crossrefs

Cf. A000040, A090086, A007535, A317851.

Sequence in context: A233265 A095319 A129621 * A077500 A036955 A040179

Adjacent sequences: A316501 A316502 A316503 * A316505 A316506 A316507

Keyword

nonn,more

Author

Thomas Ordowski, Aug 12 2018

Status

approved