A031250 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,28

LINKS

Table of n, a(n) for n=1..90.

CROSSREFS

Cf. A031235.

Sequence in context: A318560 A030385 A253553 * A031233 A030584 A030564

Adjacent sequences: A031247 A031248 A031249 * A031251 A031252 A031253

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved