Numbers n such that sum of primes dividing n (with repetition) is equal to the largest prime factor of n+1.
A071863
Numbers n such that sum of primes dividing n (with repetition) is equal to the largest prime factor of n+1.
Terms
- a(0) =54a(1) =90a(2) =328a(3) =390a(4) =423a(5) =608a(6) =1805a(7) =1825a(8) =2755a(9) =2847a(10) =3008a(11) =3289a(12) =3354a(13) =5695a(14) =8949a(15) =9453a(16) =9675a(17) =9685a(18) =10730a(19) =10933a(20) =12462a(21) =12564a(22) =12803a(23) =15235a(24) =18424a(25) =20622a(26) =28033a(27) =29350a(28) =33813a(29) =39909
External references
- oeis: A071863