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A280730
Partial sums of A278742.
1
1, 3, 6, 16, 27, 39, 59, 89, 189, 299, 499, 799, 1799, 2899, 4899, 6999, 9999, 19999, 39999, 69999, 169999, 279999, 399999, 599999, 899999, 1899999, 2999999, 4999999, 7999999, 17999999, 28999999, 48999999, 69999999, 99999999, 199999999, 399999999, 699999999
OFFSET
1,2
CROSSREFS
Cf. A278742.
Sequence in context: A127935 A144538 A130596 * A339848 A321409 A151954
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jan 09 2017
STATUS
approved