A345422 Row 5 of array in A345417.

1, -1, 1, 2, 0, 6, -3, 7, -2, 8, -14, -10, 15, 4, -17, -24, -16, -11, -6, 13, 20, 36, -15, -8, -44, 46, -28, 39, 10, -41, -23, 12, 25, 38, -27, 55, -57, -74, 76, 63, -65, 33, -52, -35, 18, -18, 96, -81, 62, -104, 106, 87, 22, -114, -70, 24, 49, 74, 126, -51, 103, 80, 28, -113, 57

Offset

1,4

Links

Table of n, a(n) for n=1..65.

Prog

(Python)
from sympy.core.numbers import igcdex
from sympy import prime
def A345422(n): return igcdex(11, prime(n))[0] # Chai Wah Wu, Jul 01 2021

Crossrefs

Cf. A345417-A345421.

Sequence in context: A055302 A055349 A161174 * A291240 A233207 A136656

Adjacent sequences: A345419 A345420 A345421 * A345423 A345424 A345425

Keyword

sign

Author

N. J. A. Sloane, Jun 19 2021.

Status

approved