A336813 Fixed points of A187769.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 29, 30, 31, 32, 33, 34, 41, 42, 53, 54, 61, 62, 63, 64, 65, 66, 76, 115, 125, 126, 127, 128, 129, 130, 172, 211, 253, 254, 255, 256, 257, 258, 312, 455, 509, 510, 511, 512, 513, 514, 696, 839, 1021

Offset

1,3

Comments

If m > 0 belongs to the sequence, then A054429(m) also belongs to the sequence; this accounts for the symmetries visible in the binary plot of the sequence (see Links section).

For any k >= 0 and any e in {-1, 0, +1}, 2^k + e belongs to the sequence.

Links

Rémy Sigrist, Table of n, a(n) for n = 1..270

Rémy Sigrist, Binary plot of the terms < 2^24

Rémy Sigrist, PARI program for A336813

Example

A187769(53) = 53, so 53 belongs to the sequence.

Prog

(PARI) See Links section.

Crossrefs

Cf. A054429, A187769.

Sequence in context: A367611 A247812 A050724 * A209860 A287513 A194403

Adjacent sequences: A336810 A336811 A336812 * A336814 A336815 A336816

Keyword

nonn,base

Author

Rémy Sigrist, Nov 21 2020

Status

approved