The second arithmetic derivative of primorial numbers.
A369651
The second arithmetic derivative of primorial numbers.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =1a(4) =32a(5) =1a(6) =1a(7) =37712a(8) =381596a(9) =9835475a(10) =36880858a(11) =5221912091a(12) =149759057759a(13) =186024798a(18) =1a(19) =1a(22) =1
External references
- oeis: A369651