Irregular triangle T(n,k) read by rows in which row n lists the numbers m such that the number of prime numbers <= m is equal to the number of base-n zerofree numbers <= m.
A324156
Irregular triangle T(n,k) read by rows in which row n lists the numbers m such that the number of prime numbers <= m is equal to the number of base-n zerofree numbers <= m.
Terms
- a(0) =2a(1) =3a(2) =4a(3) =3a(4) =113a(5) =114a(6) =115a(7) =116a(8) =117a(9) =118a(10) =119a(11) =120a(12) =199a(13) =200a(14) =201a(15) =293a(16) =294a(17) =295a(18) =296a(19) =297a(20) =298a(21) =299a(22) =300a(23) =301a(24) =302a(25) =303a(26) =304a(27) =305a(28) =306a(29) =482
External references
- oeis: A324156