A246363 - OEIS

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A246363

Permutation of natural numbers: a(n) = A135141(A048673(n)).

1, 2, 4, 8, 3, 9, 5, 13, 10, 16, 6, 14, 7, 12, 35, 20, 17, 79, 11, 67, 71, 33, 19, 271, 39, 31, 139, 87, 15, 30, 18, 311, 47, 34, 63, 74, 23, 29, 26, 351, 21, 28, 27, 24, 303, 69, 25, 2431, 70, 223, 135, 319, 37, 1663, 65, 58, 41, 38, 32, 219, 43, 127, 367, 327, 287, 239, 55, 107, 46, 283, 22, 413, 51, 53, 147

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

OFFSET

1,2

COMMENTS

Apart from 2, even numbers occur only in positions given by A246261 (together with some odd numbers).

Also, apart from A246263(1) = 2, the positions given by the rest of A246263: 5, 6, 7, 8, 15, 17, 18, 19, 20, 21, ... contain odd numbers only.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

Index entries for sequences that are permutations of the natural numbers

FORMULA

a(n) = A135141(A048673(n)).

PROG