a(n) is the least integer k whose arithmetic derivative is equal to the n-th primorial, or 0 if no such k exists.
A368703
a(n) is the least integer k whose arithmetic derivative is equal to the n-th primorial, or 0 if no such k exists.
Terms
- a(0) =2a(1) =0a(2) =9a(3) =161a(4) =2189a(5) =29861a(6) =510221a(7) =1547371a(8) =79332523a(9) =9592991561a(10) =265257420749
External references
- oeis: A368703