A031250 (# 3's)-(# 4's) in first n terms of A031235.

0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 2, 2, 3, 4, 5, 4, 5, 5, 4, 4, 3, 3, 2, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0

Offset: 1

Author

Clark Kimberling

Keywords

• nonn

Crossrefs

Cf. A031235.