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A026502
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
1, 2, 3, 4, 6, 10, 17, 18, 22, 23, 25, 29, 30, 31, 38, 39, 41, 42, 46, 49, 50, 52, 55, 57, 58, 62, 65, 66, 67, 70
OFFSET
1,2
CROSSREFS
Sequence in context: A342759 A293632 A216783 * A060163 A106511 A024490
KEYWORD
nonn
STATUS
approved