Numbers m such that exactly four subsets of {m-1, m, m+1} sum up to a prime number.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =30a(5) =660a(6) =810a(7) =2130a(8) =2550a(9) =3330a(10) =3390a(11) =5850a(12) =6270a(13) =10530a(14) =33180a(15) =41610a(16) =44130a(17) =53550a(18) =55440a(19) =57330a(20) =63840a(21) =65100a(22) =70380a(23) =70980a(24) =72270a(25) =74100a(26) =74760a(27) =78780a(28) =80670a(29) =81930