Irregular triangle T(n,k), n >= 0, 0 <= k < 2^(n-1), where T(n,k) = Product_{j=0..n-1} prime(j+1)^((n-j)*d_j), where d_j is the bit with digit weight 2^j in the binary expansion of 2^(n-1)+k.
A384003
Irregular triangle T(n,k), n >= 0, 0 <= k < 2^(n-1), where T(n,k) = Product_{j=0..n-1} prime(j+1)^((n-j)*d_j), where d_j is the bit with digit weight 2^j in the binary expansion of 2^(n-1)+k.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =12a(4) =5a(5) =40a(6) =45a(7) =360a(8) =7a(9) =112a(10) =189a(11) =3024a(12) =175a(13) =2800a(14) =4725a(15) =75600a(16) =11a(17) =352a(18) =891a(19) =28512a(20) =1375a(21) =44000a(22) =111375a(23) =3564000a(24) =539a(25) =17248a(26) =43659a(27) =1397088a(28) =67375a(29) =2156000
External references
- oeis: A384003