Minimal natural number (in decimal representation) with n prime substrings in base-7 representation (substrings with leading zeros are considered to be nonprime).
A217307
Minimal natural number (in decimal representation) with n prime substrings in base-7 representation (substrings with leading zeros are considered to be nonprime).
Terms
- a(0) =1a(1) =2a(2) =16a(3) =17a(4) =115a(5) =121a(6) =509a(7) =821a(8) =3251a(9) =4721a(10) =5749a(11) =22760a(12) =25301a(13) =41673a(14) =142950a(15) =173819a(16) =291714a(17) =920561a(18) =1222716a(19) =2041709a(20) =4450031a(21) =8559017a(22) =9350687a(23) =14295199a(24) =31150219a(25) =50568439a(26) =71502954a(27) =100066398a(28) =218051538a(29) =353979075
External references
- oeis: A217307