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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
OFFSET
1,3
CROSSREFS
Cf. A030401.
Sequence in context: A128863 A117391 A129456 * A329526 A160371 A059686
KEYWORD
nonn
STATUS
approved