0,8
A proper definition is needed for this sequence.
Are the row sums A074139(n) and the row lengths A000041(n)? - R. J. Mathar, May 08 2019
Table of n, a(n) for n=0..45.
The triangle begins
1
1 1
1 1 1
1 2 1
1 1 1 1
1 2 2 1
1 3 3 1
1 1 1 1 1
1 2 2 2 1
1 2 3 2 1
1 3 4 3 1
1 4 6 4 1
1 1 1 1 1 1
1 2 2 2 2 1
1 2 3 3 2 1
1 3 4 4 3 1
1 3 5 5 3 1
1 4 7 7 4 1
1 5 10 10 5 1
Sequence in context: A139039 A279061 A206491 * A025910 A002637 A166279
Adjacent sequences: A122169 A122170 A122171 * A122173 A122174 A122175
obsc,nonn,tabf,more
Alford Arnold, Aug 23 2006
approved
