A275891 a(n) is the number of i <= n such that A065188(i) < i.

0, 0, 0, 1, 2, 2, 2, 2, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 16, 17, 17, 17, 17, 17, 17, 18, 19, 19, 19, 19, 20, 20, 21, 21, 22, 23, 23, 23, 23, 23, 24, 24, 24, 25, 25, 26, 26, 27, 27, 27, 27, 28, 28, 29, 30, 30, 31, 31, 31, 31

Offset

1,5

Comments

Counts terms of A065188 that are above the main diagonal.

Links

Table of n, a(n) for n=1..83.

Crossrefs

Cf. A065188, A275890, A275892.

Sequence in context: A358903 A103373 A038539 * A109368 A046774 A029105

Adjacent sequences: A275888 A275889 A275890 * A275892 A275893 A275894

Keyword

nonn

Author

N. J. A. Sloane, Aug 20 2016

Status

approved