OFFSET
0,3
COMMENTS
Does this sequence contain every number?
Does each number appear only a finite number of times?
Starting with a(0)=0 and a(1)=1 gives the same sequence offset by one place.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..25000
Rémy Sigrist, PARI program for A337063
EXAMPLE
a(2) = occurrences of a(1)=1 in [a(0), a(1)]=[1, 1] * occurrences of a(0)=1 in [a(0), a(1)]=[1, 1] = 2*2 = 4.
a(3) = occurrences of a(2)=4 in [a(0), a(1), a(2)]=[1, 1, 4] * occurrences of a(1)=1 in [a(0), a(1), a(2)]=[1, 1, 4] = 1*2 = 2.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alex Lauber, Aug 13 2020
EXTENSIONS
More terms from Rémy Sigrist, Sep 18 2020
STATUS
approved