A134656 Corresponding GCD values in A116894.

2, 10453, 129341, 157519, 555097, 595411, 624363411431

Offset

1,1

Links

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

Formula

a(n) = gcd(A116894(n)! + 1, A116894(n)^A116894(n) + 1)

Prog

(PARI) for(n = 1, 10^9, my(x = gcd(n! + 1, n^n + 1)); if(x != 1 && x != 2*n + 1, print1(x, ", ")))
(C) // See Links section in A116893.

Crossrefs

Cf. A116894.

Sequence in context: A023328 A294324 A349510 * A128122 A082178 A345396

Adjacent sequences: A134653 A134654 A134655 * A134657 A134658 A134659

Keyword

hard,more,nonn

Author

Ryan Propper, Feb 01 2008

Extensions

a(6)-a(7) from Nick Hobson, Feb 20 2024

Status

approved