Least k with precisely n partitions k = x + y satisfying x > 0 and k' = x' + y', where k', x', y' are the arithmetic derivatives of k, x, y.
A212664
Least k with precisely n partitions k = x + y satisfying x > 0 and k' = x' + y', where k', x', y' are the arithmetic derivatives of k, x, y.
Terms
- a(0) =3a(1) =39a(2) =213a(3) =903a(4) =2379a(5) =2343a(6) =6545a(7) =12325a(8) =15015a(9) =16107a(10) =45045a(11) =134225a(12) =80535a(13) =142545a(14) =205205a(15) =255255a(16) =346035a(17) =533715a(18) =615615a(19) =645645a(20) =997815a(21) =1601145a(22) =1369095a(23) =1936935
External references
- oeis: A212664