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A332990 Inverse of permutation in A332977. 2
1, 2, 3, 4, 5, 6, 9, 7, 8, 10, 17, 11, 33, 18, 12, 13, 65, 14, 129, 19, 20, 34, 257, 21, 15, 66, 16, 35, 513, 22, 1025, 23, 36, 130, 24, 25, 2049, 258, 67, 37, 4097, 38, 8193, 68, 26, 514, 16385, 39, 27, 28, 131, 132, 32769, 29, 40, 69, 259, 1026, 65537, 41 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Permutation of the natural numbers A000027 with fixed points 1, 2, 3, 4, 5, 6, 10, ... and inverse permutation A332977 (with offset 1).

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..20000

Index entries for sequences that are permutations of the natural numbers

FORMULA

a(p) = 1 + 2^(pi(p)-1) = A094373(A000720(p)) for prime p.

CROSSREFS

Cf. A000027, A000040, A000720 (pi), A094373, A332977.

Sequence in context: A029964 A275583 A295088 * A257815 A141655 A174349

Adjacent sequences:  A332987 A332988 A332989 * A332991 A332992 A332993

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Mar 05 2020

STATUS

approved

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Last modified July 11 20:03 EDT 2020. Contains 335652 sequences. (Running on oeis4.)