A024929 a(n) = Sum_{k = 1..n} k*floor((n + prime(k))/k).

3, 8, 17, 29, 51, 70, 97, 122, 161, 195, 254, 303, 393, 455, 518, 586, 667, 747, 834, 915, 1024, 1125, 1238, 1364, 1481, 1603, 1744, 1919, 2125, 2246, 2472, 2711, 2911, 3090, 3297, 3507, 3753, 3944, 4154, 4367, 4609, 4820, 5089, 5315, 5555, 5807, 6100, 6341, 6630, 6894

Offset

1,1

Links

Table of n, a(n) for n=1..50.

Prog

(PARI) a(n) = sum(k=1, n, k*floor((n+prime(k))/k)) \\ Michel Marcus, Mar 23 2013

Crossrefs

Sequence in context: A227017 A073433 A059518 * A033816 A011889 A188426

Adjacent sequences: A024926 A024927 A024928 * A024930 A024931 A024932

Keyword

nonn

Author

Clark Kimberling

Status

approved