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A026503 a(n) = least positive integer > a(n-1) and not a(j)*a(k) + a(k)*a(i) + a(i)*a(j) for 1<=i<j<k<=n. 2
1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 19, 21, 22, 24, 25, 27, 28, 30, 31, 33, 36, 37, 40, 42, 43, 45, 46, 48, 51, 57, 58, 60, 61, 63, 67, 70, 72, 75, 78, 81, 82, 85, 88, 91, 93, 96, 102, 105, 112, 117, 120, 121, 123, 130, 133 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..60.

CROSSREFS

Sequence in context: A083792 A083794 A133016 * A235498 A052405 A039212

Adjacent sequences:  A026500 A026501 A026502 * A026504 A026505 A026506

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Naohiro Nomoto, Sep 15 2001

STATUS

approved

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Last modified May 25 06:43 EDT 2022. Contains 354049 sequences. (Running on oeis4.)