Numbers n that can be expressed as the sum of the arithmetic derivatives of k previous numbers starting from n for some k >= 1.
A187807
Numbers n that can be expressed as the sum of the arithmetic derivatives of k previous numbers starting from n for some k >= 1.
Terms
- a(0) =4a(1) =5a(2) =6a(3) =7a(4) =27a(5) =42a(6) =43a(7) =1310a(8) =3125a(9) =47058a(10) =47059a(11) =151747a(12) =192382a(13) =192383a(14) =244419a(15) =257614a(16) =823543a(17) =28170538a(18) =28170539a(19) =36861843a(20) =48647587a(21) =556429758a(22) =2736456639a(23) =26781610526
External references
- oeis: A187807