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A177828
First differences of A176983.
0
3, 2, 6, 4, 20, 10, 20, 6, 24, 6, 34, 26, 4, 26, 40, 44, 4, 12, 14, 6, 4, 30, 26, 16, 32, 18, 22, 2, 24, 12, 4, 44, 24, 6, 16, 14, 6, 48, 16, 14, 10, 38, 4, 26, 18, 34, 2, 4, 2, 24, 30, 70, 14, 16, 14, 34, 56, 22, 8, 6, 58, 50, 6, 84, 46, 56, 16, 8, 12, 52, 12, 20, 70, 8, 6, 10, 32, 54
OFFSET
1,1
COMMENTS
a(n)=2 for n=2,28,47,49,135,173,225,258,375,384,439, A177829.
CROSSREFS
Sequence in context: A286595 A348404 A218615 * A248479 A304533 A090571
KEYWORD
nonn
AUTHOR
Zak Seidov, May 14 2010
STATUS
approved