Number of (n+1)X4 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero.
A204835
Number of (n+1)X4 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero.
Terms
- a(0) =318a(1) =1616a(2) =7070a(3) =34100a(4) =157872a(5) =752028a(6) =3530808a(7) =16789864a(8) =79293448a(9) =377319812a(10) =1788274836a(11) =8518844116a(12) =40475837046a(13) =193014313760a(14) =918808191844
External references
- oeis: A204835