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A030618
(# 1's)-(# 2's) in first n terms of A030604.
0
1, 0, 0, 0, 1, 0, -1, 0, 0, 0, 0, 0, 1, 1, 2, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, -1, -1, -1, -1, -1, -1, -2, -2, -1, 0, -1, -2, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 2, 2, 2, 3, 2, 1, 1, 1, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2
OFFSET
1,15
CROSSREFS
Sequence in context: A094263 A049761 A211225 * A025448 A015010 A016011
KEYWORD
sign
STATUS
approved