OFFSET
0,3
COMMENTS
Although in principle a list, the indexing of this sequence starts from zero, as 0 is always fixed by all Catalan bijections (permutations induced by bijective operations performed on A014486), so it is a trivial case, which can be skipped by considering only values from a(n>=1) onward.
Sequence gives also the positions of all zeros in A243492.
LINKS
Antti Karttunen, Table of n, a(n) for n = 0..7059
PROG
(Scheme, with Antti Karttunen's IntSeq-library, two variants)
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jun 07 2014
STATUS
approved