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A026487 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-a(k) for 1<=i<j<k<n. 0
1, 3, 4, 5, 6, 8, 11, 15, 20, 23, 26, 27, 30, 31, 41, 56, 71, 72, 75, 76, 95, 98, 101, 102, 116, 117, 120, 156, 159, 161, 162, 200, 217, 237, 281, 296, 311, 322, 338, 341, 342, 366, 386, 392, 396, 397, 401, 508, 516, 635, 639 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..51.

CROSSREFS

Sequence in context: A047426 A323527 A316091 * A130788 A288819 A087743

Adjacent sequences:  A026484 A026485 A026486 * A026488 A026489 A026490

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Naohiro Nomoto, Sep 15 2001

STATUS

approved

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Last modified September 27 07:39 EDT 2021. Contains 347672 sequences. (Running on oeis4.)