A275890 a(n) is the number of i <= n such that A065188(i) >= i.

1, 2, 3, 3, 3, 4, 5, 6, 7, 7, 7, 8, 8, 9, 9, 10, 11, 12, 13, 13, 13, 14, 15, 16, 17, 17, 17, 18, 18, 19, 19, 20, 21, 21, 22, 23, 24, 24, 25, 25, 26, 26, 26, 27, 28, 29, 30, 31, 31, 31, 32, 33, 34, 34, 35, 35, 36, 36, 36, 37, 38, 39, 40, 40, 41, 42, 42, 43, 43, 44, 44, 45, 46, 47, 47, 48, 48, 48, 49, 49

Offset: 1

Author

N. J. A. Sloane, Aug 20 2016

Keywords

• nonn

Comments

Counts terms of A065188 that are on or below the main diagonal.

Crossrefs

Cf. A065188, A275891, A275892.