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
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Nov 21 2020
STATUS
approved