Number of composite numbers less than prime(n)^2.
0, 3, 14, 32, 89, 128, 226, 287, 428, 693, 797, 1148, 1416, 1564, 1878, 2398, 2992, 3200, 3878, 4364, 4622, 5428, 6001, 6919, 8244, 8947, 9313, 10066, 10456, 11244, 14250, 15183, 16626, 17129, 19710, 20252, 21918, 23652, 24844, 26686, 28603, 29247, 32611
1
The first term is zero because 1 is not a composite number.
T. D. Noe, Plot of 1000 terms
T. D. Noe, Table of 1000 terms
(Mma) Table[p2 = Prime[n]^2; p2 - PrimePi[p2] - 2, {n, 100}]
Cf. A120389.
nonn
T. D. Noe, Aug 28 2014