A365080 - OEIS

A365080

Inverse permutation to A364885.

0, 1, 3, 2, 6, 4, 9, 5, 10, 7, 13, 8, 27, 14, 54, 20, 15, 11, 18, 12, 34, 19, 64, 26, 65, 35, 104, 44, 405, 119, 1539, 230, 21, 16, 24, 17, 42, 25, 75, 33, 76, 43, 118, 53, 433, 134, 1594, 251, 135, 77, 189, 90, 629, 209, 2144, 377, 2210, 665, 5564, 1034

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..59.

Rémy Sigrist, PARI program

Index entries for sequences that are permutations of the natural numbers

FORMULA

a(2^k) = A000217(k + 1) for any k >= 0.

Apparently, a(2^k-1) = A006893(k) for any k > 0.

EXAMPLE

A364885(42) = 36, hence a(36) = 42.