A246266 Permutation of natural numbers: a(n) = A246262(A064216((2*n)-1)).

1, 2, 3, 6, 8, 5, 4, 11, 9, 15, 20, 7, 12, 26, 17, 32, 16, 21, 35, 18, 10, 22, 39, 31, 42, 47, 14, 53, 55, 25, 28, 13, 38, 40, 67, 41, 34, 72, 29, 81, 46, 24, 62, 87, 52, 93, 45, 23, 96, 98, 63, 57, 60, 70, 77, 75, 19, 111, 112, 78, 116, 36, 85, 69, 121, 44, 74, 127, 56, 131, 135, 50, 89, 137, 30

Offset: 1

Author

Antti Karttunen, Aug 21 2014

Keywords

• nonn

Comments

This permutation is induced when A064216 is restricted to odd numbers (equally, when A064989 is restricted to the numbers of form 4k+1) and the resulting numbers are "ranked" with A246262.

Links

• Antti Karttunen, Table of n, a(n) for n = 1..10001
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Inverse: A246265.

Cf. also A064216, A064989, A246262, A246268.

Programs

Scheme

(define (A246266 n) (A246262 (A064216 (+ -1 n n))))

Formula

a(n) = A246262(A064216((2*n)-1)).

a(n) = A246262(A064989((4*n)-3)).