A054999 Integers that can be expressed as the sum of consecutive primes in exactly 4 ways.
1151, 1164, 1320, 1367, 1650, 1854, 1951, 2393, 2647, 2689, 2856, 2867, 3198, 3264, 3389, 3754, 4200, 4920, 4957, 5059, 5100, 5153, 5770, 5999, 6504, 7451, 7901, 8152, 8819, 10134, 10320, 10499, 10536, 10649, 10859, 10949, 11058, 12294
Offset: 1
Keywords
References
- R. K. Guy, Unsolved Problems in Number Theory, section C2.
Links
- Ray Chandler, Table of n, a(n) for n = 1..10000
- Carlos Rivera, Puzzle 46. Primes expressible as sum of consecutive primes in K ways, The Prime Puzzles and Problems Connection.
Formula
A054845(a(n)) = 4. - Ray Chandler, Sep 20 2023