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A139785
First differences of A139784.
0
0, 0, 0, 1, 1, 2, 4, 11, 19, 38, 76, 163, 315, 630, 1260, 2563, 5083, 10166, 20332
OFFSET
0,6
CROSSREFS
Sequence in context: A053031 A018674 A076518 * A283173 A283254 A347007
KEYWORD
nonn
AUTHOR
Paul Curtz, May 16 2008
STATUS
approved