Least numbers k > 1 such that k'' = n*k', where k' and k'' are the first and the second arithmetic derivatives of k.
A287059
Least numbers k > 1 such that k'' = n*k', where k' and k'' are the first and the second arithmetic derivatives of k.
Terms
- a(0) =2a(1) =4a(2) =12a(3) =160a(4) =1255a(5) =256a(6) =12279a(7) =3072a(8) =1113823a(9) =119120a(10) =2191040a(11) =4640768a(12) =1835008a(13) =12805120a(14) =134217728
External references
- oeis: A287059