Numbers k such that k!4 + 2^10 is prime, where k!4 = k!!!! is the quadruple factorial number (A007662).
A291351
Numbers k such that k!4 + 2^10 is prime, where k!4 = k!!!! is the quadruple factorial number (A007662).
Terms
- a(0) =9a(1) =13a(2) =23a(3) =27a(4) =33a(5) =47a(6) =61a(7) =113a(8) =145a(9) =161a(10) =191a(11) =281a(12) =291a(13) =417a(14) =869a(15) =919a(16) =1213a(17) =1297a(18) =1663a(19) =2103a(20) =2297a(21) =2325a(22) =3241a(23) =3895a(24) =4337a(25) =6645a(26) =7911a(27) =8737a(28) =13369a(29) =13555
External references
- oeis: A291351