1,2

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program

a(prime(n)) = 2^n for any n > 0 (where prime(n) denotes the n-th prime number).

A355435(28) = 42, so a(42) = 28.

(PARI) See Links section.

Cf. A355435.

Sequence in context: A242722 A120242 A322864 * A352713 A054427 A232563

Adjacent sequences: A355433 A355434 A355435 * A355437 A355438 A355439

nonn

Rémy Sigrist, Jul 02 2022

approved