A245451 Self-inverse permutation of nonnegative integers, A075158-conjugate of gray code: a(n) = 1 + A075157(A003188(A075158(n-1))).

1, 2, 4, 3, 8, 9, 16, 6, 5, 27, 32, 18, 64, 81, 25, 12, 128, 7, 256, 54, 125, 243, 512, 36, 10, 729, 15, 162, 1024, 49, 2048, 24, 625, 2187, 50, 14, 4096, 6561, 3125, 108, 8192, 343, 16384, 486, 75, 19683, 32768, 72, 20, 21, 15625, 1458, 65536, 35, 250, 324, 78125, 59049, 131072, 98, 262144, 177147, 375, 48

Offset: 1

Author

Antti Karttunen, Jul 22 2014

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..1024
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Inverse: A245452.

Cf. A003188, A075157, A075158.

Similar permutations: A245454, A122111, A241909, A241916.

Programs

Scheme

(define (A245451 n) (+ 1 (A075157 (A003188 (A075158 (- n 1))))))

Formula

a(n) = 1 + A075157(A003188(A075158(n-1))).