A294428 Terms of A065188 that are below the main diagonal.

2, 4, 6, 8, 7, 10, 12, 14, 16, 18, 17, 20, 21, 23, 24, 28, 26, 30, 32, 33, 34, 38, 36, 40, 42, 43, 44, 46, 47, 50, 49, 52, 54, 55, 57, 59, 61, 62, 65, 64, 67, 68, 69, 71, 75, 73, 77, 79, 81, 80, 83, 85, 87, 88, 91, 90, 93, 95, 94, 97, 99, 101, 103, 104

Offset: 1

Author

N. J. A. Sloane, Nov 06 2017, based on an email from Don Knuth, Oct 31 2017

Keywords

• nonn

Comments

This gives another way to view A199134. In fact, a(n) = A065188(A199134(n)).

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..19000

Crossrefs

Cf. A065188, A199134, A275884, A294428.