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

0,1

Links

Table of n, a(n) for n=0..45.

Example

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

Crossrefs

Cf. A050703, A050710.

Sequence in context: A134252 A153224 A177210 * A050438 A047822 A048126

Adjacent sequences: A050767 A050768 A050769 * A050771 A050772 A050773

Keyword

nonn

Author

Patrick De Geest, Sep 15 1999

Status

approved