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A131936
Partial sums of A006226.
0
1, 3, 12, 30, 148, 387, 1981
OFFSET
1,2
CROSSREFS
Cf. A006226.
Sequence in context: A363913 A352157 A293656 * A009135 A131740 A037237
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Oct 05 2007
STATUS
approved