Numbers n such that n, n+1 and n+2 are 1,2,3-almost primes.

Terms

a(0) =61a(1) =73a(2) =193a(3) =277a(4) =397a(5) =421a(6) =613a(7) =661a(8) =757a(9) =1093a(10) =1237a(11) =1453a(12) =1657a(13) =2137a(14) =2341a(15) =2593a(16) =2797a(17) =2917a(18) =3217a(19) =4177a(20) =4621a(21) =5233a(22) =6121a(23) =6133a(24) =6217a(25) =7057a(26) =7537a(27) =8101a(28) =8317a(29) =8353