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A255171
First differences of A072473.
2
3, 4, 4, 6, 6, 2, 8, 4, 4, 6, 4, 8, 4, 2, 12, 2, 10, 6, 6, 6, 6, 2, 18, -2, 6, 10, 8, 6, 6, -2, 14, 0, 18, 2, 8, 8, 4, 10, 6, 6, 10, 0, 12, 2, 14, 0, 0, 14, 18, 12, 6, 6, 6, 2, 6, 0, 20, 0, 8
OFFSET
1,1
FORMULA
a(n) = A072473(n+1) - A072473(n).
CROSSREFS
Sequence in context: A309530 A341933 A061117 * A323712 A215250 A354154
KEYWORD
sign
AUTHOR
Zak Seidov, Feb 15 2015
STATUS
approved