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A031268
a(n)=(# 3's)-(# 4's) in first n terms of A031253.
0
0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 2, 2, 3, 3, 4, 3, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 3, 4, 4, 3, 3, 3, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 3, 4
OFFSET
1,13
CROSSREFS
Sequence in context: A116473 A341151 A006546 * A237817 A306949 A189025
KEYWORD
nonn
STATUS
approved