A225674 Triangular numbers of the form p*w, where p is a prime number and w is a prime power (A025475).
3, 28, 45, 136, 153, 171, 325, 351, 496, 1431, 3321, 4753, 7381, 8128, 13203, 29161, 31375, 32896, 56953, 65341, 118341, 166753, 195625, 354061, 780625, 1063611, 2390391, 2883601, 3544453, 5649841, 6060421, 6835753, 6924781, 9563751, 11527201, 12708361, 19478161, 24231241
Offset: 1