Triple factorial array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions {[m*(m+5)/6], m >= 0} and then taking partial sums, starting with all 1's in row 0.
A136212
Triple factorial array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions {[m*(m+5)/6], m >= 0} and then taking partial sums, starting with all 1's in row 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =2a(5) =1a(6) =28a(7) =10a(8) =3a(9) =1a(10) =280a(11) =80a(12) =18a(13) =4a(14) =1a(15) =3640a(16) =880a(17) =162a(18) =28a(19) =5a(20) =1a(21) =58240a(22) =12320a(23) =1944a(24) =280a(25) =39a(26) =6a(27) =1a(28) =1106560a(29) =209440
External references
- oeis: A136212