Initial term of a set of consecutive primes {p1, p2, p3, p4} such that Sum_{k=p1..p2} d(k) = Sum_{k=p2..p3} d(k) = Sum_{k=p3..p4} d(k), where d(k) is the number of divisors function A000005.
A353553
Initial term of a set of consecutive primes {p1, p2, p3, p4} such that Sum_{k=p1..p2} d(k) = Sum_{k=p2..p3} d(k) = Sum_{k=p3..p4} d(k), where d(k) is the number of divisors function A000005.
Terms
- a(0) =105373a(1) =147073a(2) =432031a(3) =663959a(4) =699367a(5) =1144511a(6) =1856287a(7) =2126611a(8) =2235661a(9) =2271383a(10) =2661931a(11) =2699087a(12) =2887763a(13) =3798019a(14) =5093917a(15) =5722261a(16) =5802521a(17) =6158093a(18) =7504307a(19) =7512749a(20) =7605791a(21) =8279203a(22) =9166301a(23) =9585881a(24) =11195881a(25) =11267293a(26) =11644901a(27) =11925019a(28) =11978419a(29) =12359857
External references
- oeis: A353553