Semiprimes whose digit reversal is a nontrivial power.
A108849
Semiprimes whose digit reversal is a nontrivial power.
Terms
- a(0) =4a(1) =9a(2) =46a(3) =94a(4) =121a(5) =169a(6) =215a(7) =526a(8) =961a(9) =982a(10) =1042a(11) =1273a(12) =1405a(13) =1843a(14) =2918a(15) =3194a(16) =4069a(17) =4633a(18) =5213a(19) =5221a(20) =6313a(21) =6511a(22) =6937a(23) =8402a(24) =9235a(25) =9481a(26) =9586a(27) =9886a(28) =10201a(29) =10609
External references
- oeis: A108849