0,4

I.e. number of orbits to which "gatomorphisms" A071663/A071664 partition each A000108(n) Catalan tree structures encoded in A014486[A014137(n-1)..A014138(n-1)].

A. Karttunen, C-program for counting the initial terms of this sequence

Occurs in A073201 as row 176609070820803. Cf. A057507, A079437, A079442, A079443.

Sequence in context: A101824 A027946 A143608 this_sequence A129418 A073218 A151348

Adjacent sequences: A079438 A079439 A079440 this_sequence A079442 A079443 A079444

nonn

Antti Karttunen (Firstname.Surname(AT)iki.fi) Jan 27 2003