A069533 sum(p,floor(n^2/p^2)) where the sum is over all the primes.

0, 1, 3, 5, 9, 14, 19, 26, 33, 42, 50, 60, 71, 83, 96, 110, 124, 139, 157, 175, 192, 210, 231, 252, 274, 297, 321, 345, 369, 398, 423, 451, 483, 512, 544, 573, 606, 639, 675, 710, 745, 785, 822, 863, 902, 943, 986, 1028, 1070, 1113, 1161, 1207, 1254, 1304