Triangle read by rows in which the k-th term in row n (n >= 1, k = 1..n) is Product_{i=0..k-1} prime(n-i).

A098012

Triangle read by rows in which the k-th term in row n (n >= 1, k = 1..n) is Product_{i=0..k-1} prime(n-i).

Terms

    a(0) =2a(1) =3a(2) =6a(3) =5a(4) =15a(5) =30a(6) =7a(7) =35a(8) =105a(9) =210a(10) =11a(11) =77a(12) =385a(13) =1155a(14) =2310a(15) =13a(16) =143a(17) =1001a(18) =5005a(19) =15015a(20) =30030a(21) =17a(22) =221a(23) =2431a(24) =17017a(25) =85085a(26) =255255a(27) =510510a(28) =19a(29) =323

External references