Numbers whose prime factorization (prime factors and exponents) contains the digits 1 and 2 at least once, but no other digits.
A364484
Numbers whose prime factorization (prime factors and exponents) contains the digits 1 and 2 at least once, but no other digits.
Terms
- a(0) =2a(1) =22a(2) =44a(3) =121a(4) =211a(5) =242a(6) =422a(7) =484a(8) =844a(9) =2048a(10) =2111a(11) =2221a(12) =2321a(13) =4096a(14) =4222a(15) =4442a(16) =4642a(17) =8444a(18) =8884a(19) =9284a(20) =12211a(21) =21121a(22) =21211a(23) =21221a(24) =22111a(25) =22528a(26) =23221a(27) =24422a(28) =24431a(29) =25531
External references
- oeis: A364484