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A030412 a(n) = (# 1's)-(# 2's) in first n terms of A030401. 0
1, 1, 2, 3, 4, 4, 3, 4, 3, 3, 3, 4, 4, 4, 5, 5, 6, 7, 7, 7, 8, 9, 10, 11, 12, 12, 13, 12, 13, 14, 13, 13, 14, 14, 15, 16, 16, 16, 15, 15, 16, 15, 15, 15, 14, 15, 16, 15, 16, 16, 15, 14, 15, 14, 13, 13, 12, 12, 13, 12, 12, 12, 12, 12, 13, 13, 13, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..68.

CROSSREFS

Cf. A030401.

Sequence in context: A128863 A117391 A129456 * A329526 A160371 A059686

Adjacent sequences:  A030409 A030410 A030411 * A030413 A030414 A030415

KEYWORD

nonn,changed

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 5 23:40 EDT 2022. Contains 355108 sequences. (Running on oeis4.)