A116023 The n-th prime plus n gives a semiprime (A001358).
10, 12, 14, 15, 16, 19, 20, 21, 23, 25, 30, 31, 36, 37, 38, 39, 40, 44, 52, 54, 56, 57, 58, 60, 62, 67, 74, 75, 77, 80, 83, 84, 86, 88, 90, 99, 107, 111, 115, 120, 124, 136, 140, 145, 146, 154, 156, 160, 162, 164, 165, 166, 168, 174, 175, 182, 189, 192, 195, 196
Offset: 1
Keywords
Examples
p(30)+30=143=11*13.