A030350 a(n) = (# 1's)-(# 2's) in first n terms of A030341.

1, 0, 0, 1, 2, 3, 2, 3, 3, 2, 3, 2, 1, 0, 0, 0, 1, 2, 2, 3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 7, 8, 9, 9, 8, 9, 10, 9, 10, 9, 8, 9, 9, 9, 8, 9, 9, 8, 7, 7, 6, 6, 7, 6, 7, 8, 7, 6, 7, 6, 6, 5, 4, 5, 4, 3, 2, 1, 0, 0, 0, 0, 1, 2, 2, 2, 3, 2, 2, 2, 3, 3, 4, 4, 5, 6, 7, 7, 8, 7

Offset

1,5

Links

Table of n, a(n) for n=1..89.

Crossrefs

Cf. A030341.

Sequence in context: A200323 A075370 A332297 * A026240 A124474 A282162

Adjacent sequences: A030347 A030348 A030349 * A030351 A030352 A030353

Keyword

nonn

Author

Clark Kimberling

Status

approved