Number of length n+1 0..2*3 arrays with the sum of the absolute values of adjacent differences equal to n*3.
A249977
Number of length n+1 0..2*3 arrays with the sum of the absolute values of adjacent differences equal to n*3.
Terms
- a(0) =8a(1) =42a(2) =208a(3) =1242a(4) =6856a(5) =43068a(6) =245860a(7) =1589346a(8) =9213728a(9) =60568000a(10) =354452340a(11) =2354520904a(12) =13870730416a(13) =92791873776a(14) =549357227852
External references
- oeis: A249977