A050773 Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 6 skipped primes.

4, 22, 54, 93, 111, 145, 155, 185, 221, 231, 377, 450, 667, 688, 992, 1122, 1161, 1428, 1638, 1995, 2144, 2220, 2624, 2820, 2838, 3627, 3774, 3876, 4225, 4761, 5106, 5434, 5590, 5676, 5850, 6188, 6216, 6405, 6734, 8364, 8554, 9196, 9471, 9558, 10660

Offset: 1

Author

Patrick De Geest, Sep 15 1999

Keywords

• nonn

Examples

			a(2)=22 + (2+11) = 35 + (5+7) = ending prime 47. Between 22 and 47 one finds 6 primes 23, 29, 31, 37, 41 and 43.
		

Crossrefs

Cf. A050703, A050710.

Extensions

Offset corrected by Sean A. Irvine, Aug 18 2021