A304754 Permutation of natural numbers: a(1) = 1; a(n) = 1+A064413(A064664(n)-1).

1, 2, 7, 3, 11, 5, 15, 13, 4, 9, 23, 10, 27, 19, 6, 25, 35, 16, 39, 17, 8, 21, 47, 22, 31, 29, 34, 36, 59, 28, 63, 37, 12, 33, 26, 40, 75, 43, 14, 46, 83, 52, 87, 41, 58, 45, 95, 70, 57, 49, 18, 51, 107, 53, 61, 55, 20, 71, 119, 64, 123, 67, 50, 73, 56, 88, 135, 65, 24, 66, 143, 94, 147, 69, 112, 79, 85, 76, 159, 77, 124, 81, 167, 82, 91, 89, 30

Offset: 1

Author

Antti Karttunen, May 29 2018

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..10000
• David Newman, et al., New sequences from old, Discussion on SeqFan-mailing list, January 2018.
• Index entries for sequences related to EKG sequence
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A304753 (inverse).

Cf. A064413, A064664.

Formula

a(1) = 1; for n > 1, a(n) = 1+A064413(A064664(n)-1).