A(n,k) is the sum of all compositions [c_1, c_2, ..., c_k] of n into k nonnegative parts encoded as Product_{i=1..k} prime(i)^(c_i); square array A(n,k), n>=0, k>=0, read by antidiagonals.
A343751
A(n,k) is the sum of all compositions [c_1, c_2, ..., c_k] of n into k nonnegative parts encoded as Product_{i=1..k} prime(i)^(c_i); square array A(n,k), n>=0, k>=0, read by antidiagonals.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =2a(5) =0a(6) =1a(7) =5a(8) =4a(9) =0a(10) =1a(11) =10a(12) =19a(13) =8a(14) =0a(15) =1a(16) =17a(17) =69a(18) =65a(19) =16a(20) =0a(21) =1a(22) =28a(23) =188a(24) =410a(25) =211a(26) =32a(27) =0a(28) =1a(29) =41
External references
- oeis: A343751