A246265 Permutation of natural numbers: a(n) = (1+A048673(A246261(n)))/2.

1, 2, 3, 7, 6, 4, 12, 5, 9, 21, 8, 13, 32, 27, 10, 17, 15, 20, 57, 11, 18, 22, 48, 42, 30, 14, 102, 31, 39, 75, 24, 16, 183, 37, 19, 62, 157, 33, 23, 34, 36, 25, 132, 66, 47, 41, 26, 82, 111, 72, 97, 45, 28, 282, 29, 69, 52, 87, 107, 53, 237, 43, 51, 84, 207, 90, 35, 147, 64, 54, 129, 38, 174, 67, 56, 507, 55, 60, 152, 93, 40

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..10001

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = (1+A048673(A246261(n)))/2.

Prog

(Scheme) (define (A246265 n) (/ (+ 1 (A048673 (A246261 n))) 2))

Crossrefs

Inverse: A246266.

Cf. also A048673, A246261, A246267.

Sequence in context: A155891 A234026 A245443 * A234612 A069772 A277819

Adjacent sequences: A246262 A246263 A246264 * A246266 A246267 A246268

Keyword

nonn

Author

Antti Karttunen, Aug 21 2014

Status

approved