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A120768
Partial sums of A120405.
4
1, 2, 3, 5, 6, 8, 11, 19, 20, 22, 25, 33, 38, 50, 71, 135, 136, 138, 141, 149, 154, 166, 187, 251, 260, 280, 313, 409, 474, 642, 957, 1981, 1982, 1984, 1987, 1995, 2000, 2012, 2033, 2097, 2106, 2126, 2159, 2255, 2320, 2488, 2803, 3827, 3844, 3880, 3937, 4097, 4202, 4466, 4949, 6485
OFFSET
1,2
LINKS
EXAMPLE
a(8) = 19 since A120405(1) through A120405(8) = (1, 1, 1, 2, 1, 2, 3, 8).
MATHEMATICA
Accumulate[Nest[Join[#, # Range[Length[#]]]&, {1, 1}, 6]] (* Harvey P. Dale, Aug 10 2019 *)
CROSSREFS
Cf. A120405.
Sequence in context: A098491 A280449 A107947 * A271109 A293033 A370708
KEYWORD
nonn
AUTHOR
Gary W. Adamson, Jul 03 2006
EXTENSIONS
Corrected and extended by N. J. A. Sloane, Aug 09 2019 at the suggestion of Harvey P. Dale.
STATUS
approved