Numbers k such that k * (sum of the digits of k raised to their own power) + 1 is prime and sets a new record for number of digits.
A109376
Numbers k such that k * (sum of the digits of k raised to their own power) + 1 is prime and sets a new record for number of digits.
Terms
- a(0) =1a(1) =11a(2) =20a(3) =33a(4) =35a(5) =36a(6) =75a(7) =79a(8) =390a(9) =1991a(10) =9199a(11) =91899a(12) =699949a(13) =5299999a(14) =39999999a(15) =428999999a(16) =3699949999
External references
- oeis: A109376