Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the sum of distinct products Product_{j=1..k} b_j with 1 <= b_j<= n.
A321163
Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the sum of distinct products Product_{j=1..k} b_j with 1 <= b_j<= n.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =7a(5) =6a(6) =1a(7) =15a(8) =25a(9) =10a(10) =1a(11) =31a(12) =90a(13) =61a(14) =15a(15) =1a(16) =63a(17) =301a(18) =310a(19) =136a(20) =21a(21) =1a(22) =127a(23) =966a(24) =1441a(25) =990a(26) =244a(27) =28a(28) =1a(29) =255
External references
- oeis: A321163