Numbers producing at least 4 primes by proper concatenation of decrements.
A232657
Numbers producing at least 4 primes by proper concatenation of decrements.
Terms
- a(0) =100a(1) =874a(2) =1000a(3) =1286a(4) =3040a(5) =3721a(6) =3805a(7) =3922a(8) =4468a(9) =6412a(10) =7014a(11) =7852a(12) =8338
External references
- oeis: A232657