A026489 - OEIS

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A026489

a(n) = least positive integer > a(n-1) and not a(i)*a(j)+a(k) for 1<=i<j<k<=n.

1, 2, 3, 4, 8, 9, 18, 19, 29, 39, 40, 60, 70, 80, 81, 95, 123, 143, 144, 154, 164, 169, 174, 189, 217, 248, 258, 268, 273, 278

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..30.

CROSSREFS

Sequence in context: A256179 A078830 A304521 * A126312 A126298 A175404

Adjacent sequences: A026486 A026487 A026488 * A026490 A026491 A026492

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved