A050770 Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 3 skipped primes.

26, 33, 35, 55, 208, 297, 300, 351, 352, 420, 432, 441, 486, 660, 735, 910, 1000, 1140, 1225, 1452, 1584, 1715, 1938, 2016, 2250, 2548, 2816, 3003, 3724, 4056, 4180, 4455, 4459, 4600, 4736, 4845, 5280, 5625, 5746, 5888, 5915, 6422, 6475, 6864, 6916, 6930

Offset: 0

Author

Patrick De Geest, Sep 15 1999

Keywords

• nonn

Examples

			a(2)=33 + (3+11) = ending prime 47. Between 33 and 47 one finds 3 primes 37, 41 and 43.
		

Crossrefs

Cf. A050703, A050710.