A050776 Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 9 skipped primes.

30, 42, 99, 174, 188, 212, 216, 295, 329, 348, 371, 620, 627, 629, 649, 851, 901, 925, 957, 1081, 1189, 1248, 1353, 1363, 1696, 1830, 1880, 2133, 2173, 2491, 2664, 3660, 3843, 4020, 4420, 5056, 5688, 6327, 6700, 7540, 7626, 7808, 7888, 7900, 8295, 8778

Offset: 1

Author

Patrick De Geest, Sep 15 1999

Keywords

• nonn

Examples

			a(3)=99 + (3+3+11) = 116 + (2+2+29) = ending prime 149. Between 99 and 149 one finds 9 primes 101, 103, 107, 109, 113, 127, 131, 137 and 139.
		

Crossrefs

Cf. A050703, A050710.

Extensions

Offset corrected by Sean A. Irvine, Aug 18 2021