If an array is made of columns of -nacci sequences, fibo-, tribo- etc. all starting w. 1,1,2 etc, the NW to SE diagonals can be extended by computation. The above is diagonal 10. See A159741 for details.
A159747
If an array is made of columns of -nacci sequences, fibo-, tribo- etc. all starting w. 1,1,2 etc, the NW to SE diagonals can be extended by computation. The above is diagonal 10. See A159741 for details.
Terms
- a(0) =89a(1) =504a(2) =1490a(3) =3525a(4) =7617a(5) =15808a(6) =32192a(7) =64960a(8) =130496a(9) =261568a(10) =523712a(11) =1048000a(12) =2096576a(13) =4193728a(14) =8388032a(15) =16776640a(16) =33553856a(17) =67108288a(18) =134217152a(19) =268434880a(20) =536870336a(21) =1073741248a(22) =2147483072a(23) =4294966720a(24) =8589934016a(25) =17179868608a(26) =34359737792a(27) =68719476160a(28) =137438952896
External references
- oeis: A159747