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A122804 Smallest positive number divisible by n which is not of the form a(i)+a(j) for i and j <= n-1. 5
1, 4, 3, 12, 10, 12, 21, 32, 9, 40, 55, 48, 26, 28, 45, 112, 17, 108, 114, 180, 63, 132, 23, 168, 150, 104, 270, 28, 145, 150, 186, 128, 99, 170, 70, 252, 370, 266, 39, 400, 328, 252, 301, 352, 495, 92, 188, 576, 245, 150, 408, 468, 106, 486, 165, 784, 342, 406, 649 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Same as A122544, except that a(n) is allowed to take values already in the sequence.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..1000

MATHEMATICA

f[s_] := Block[{n, k}, k = n = Length[s] + 1; While[MemberQ[Union[Plus @@@ Tuples[s, 2]], k], k += n]; Append[s, k]]; Nest[f, {1}, 60] (*Chandler*)

CROSSREFS

Cf. A122537, A122544, A122805 (a(n)/n), A122806 (complement).

Sequence in context: A074324 A162766 A166552 * A122544 A205371 A270633

Adjacent sequences:  A122801 A122802 A122803 * A122805 A122806 A122807

KEYWORD

nonn

AUTHOR

Ray Chandler, Sep 23 2006

STATUS

approved

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Last modified February 21 19:50 EST 2018. Contains 299423 sequences. (Running on oeis4.)