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A109735 Partial sums of A109890. 10
1, 3, 6, 12, 16, 24, 36, 45, 50, 60, 75, 100, 120, 144, 160, 192, 240, 270, 288, 324, 351, 364, 371, 424, 530, 795, 954, 1272, 1484, 1498, 1605, 1926, 2140, 2568, 3210, 3745, 3780, 3801, 3982, 3993, 4026, 4048, 4071, 4130, 4200, 4228, 4379, 4408, 4427, 4660, 5126 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
See A109890.
MATHEMATICA
Accumulate[a[1]=1; a[2]=2; a[n_]:=Block[{t=Table[a[i], {i, n-1}]}, s=Plus @@ t; d=Divisors[s]; l=Complement[d, t]; If[l!={}, k = First[l], k=s; While[Position[t, k]=={}, k+=s]; k]]; Table[a[n], {n, 51}] ] (* James C. McMahon, Apr 03 2024 *)
PROG
(Haskell)
a109735 n = a109735_list !! (n-1)
a109735_list = scanl1 (+) a109890_list
-- Reinhard Zumkeller, Jan 02 2015
CROSSREFS
Cf. A109890.
Sequence in context: A281063 A032602 A116593 * A086538 A127563 A108757
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified July 22 18:23 EDT 2024. Contains 374540 sequences. (Running on oeis4.)