A026504 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.

1, 2, 4, 6, 7, 10, 11, 16, 17, 18, 19, 22, 25, 26, 27, 29, 30, 31, 36, 38, 40, 41, 42, 43, 46, 47, 49, 52, 57, 58

Offset

1,2

Links

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

Crossrefs

Sequence in context: A189131 A189033 A189165 * A026230 A026144 A353072

Adjacent sequences: A026501 A026502 A026503 * A026505 A026506 A026507

Keyword

nonn

Author

Clark Kimberling

Status

approved