OFFSET
1,2
COMMENTS
This sequence is infinite.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..1284 (terms < 2500000)
Rémy Sigrist, PARI program for A329268
FORMULA
a(A309797(n)) = 1.
a(n+1) <= 2*a(n).
EXAMPLE
A309797(67) = 1, hence 67 appears in the sequence.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Nov 11 2019
STATUS
approved