A087790 Partial sums of A085068.

1, 4, 6, 7, 9, 18, 19, 27, 30, 31, 38, 40, 41, 43, 49, 50, 53, 57, 58, 63, 65, 66, 68, 71, 72, 78, 82, 83, 86, 88, 89, 91, 95, 96, 101, 104, 105, 109, 111, 112, 114, 118, 119, 122, 130, 131, 135, 137, 138, 140, 143, 144, 148, 155, 156, 159, 161, 162, 164, 171, 172, 176

Offset: 0

Author

Benoit Cloitre, Oct 07 2003

Keywords

• nonn

Formula

Conjecture : a(n)=3n+O(sqrt(n))