OFFSET
1,2
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
E. Angelini, A Skolem-like seq with no terms repeated, SeqFan list, Nov 22 2014
Rémy Sigrist, Illustration of first terms
Rémy Sigrist, PARI program for A247476
EXAMPLE
The sequence starts 1,2,10,...: there is 1 term enclosed by 1 and 10: the term 2.
Then it goes on 1,2,10,3,20,...: there are 2 terms (10 and 3) enclosed between 2 and 20.
Then, in 1,2,10,3,20,4,5,30,... there are 3 terms (20, 4 and 5) enclosed by 3 and 30, etc.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn,base,nice
AUTHOR
Eric Angelini and M. F. Hasler, Nov 30 2014
EXTENSIONS
Data corrected by Rémy Sigrist, Jul 10 2019
STATUS
approved