Number of primes of n base-3 digits such that each of the 3 digits (0, 1, 2) appears exactly a prime number of times.

A217050

Number of primes of n base-3 digits such that each of the 3 digits (0, 1, 2) appears exactly a prime number of times.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =42a(7) =164a(8) =349a(9) =1400a(10) =3414a(11) =7816a(12) =30166a(13) =30315a(14) =241385a(15) =93803a(16) =1621424a(17) =256109a(18) =9504808a(19) =2382005a(20) =58680809a(21) =5173582a(22) =442095498a(23) =27083394a(24) =3763874067a(25) =227444355a(26) =20058458866a(27) =500609319

External references