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 11. See A159741 for details.
A159748
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 11. See A159741 for details.
Terms
- a(0) =144a(1) =927a(2) =2872a(3) =6930a(4) =15109a(5) =31489a(6) =64256a(7) =129792a(8) =260864a(9) =523008a(10) =1047296a(11) =2095872a(12) =4193024a(13) =8387328a(14) =16775936a(15) =33553152a(16) =67107584a(17) =134216448a(18) =268434176a(19) =536869632a(20) =1073740544a(21) =2147482368a(22) =4294966016a(23) =8589933312a(24) =17179867904
External references
- oeis: A159748