A355436 - OEIS

A355436

Inverse permutation to A355435.

1, 2, 4, 3, 8, 5, 16, 6, 13, 7, 32, 12, 64, 15, 9, 11, 128, 20, 256, 10, 17, 31, 512, 14, 25, 63, 29, 18, 1024, 24, 2048, 22, 33, 127, 49, 21, 4096, 255, 61, 23, 8192, 28, 16384, 30, 52, 511, 32768, 19, 113, 26, 125, 62, 65536, 36, 57, 27, 253, 1023, 131072

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

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

Rémy Sigrist, PARI program

FORMULA

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

EXAMPLE

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

PROG

(PARI) See Links section.