Number of (n+1)X3 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero.
A204834
Number of (n+1)X3 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero.
Terms
- a(0) =132a(1) =524a(2) =1616a(3) =6370a(4) =21380a(5) =81706a(6) =284982a(7) =1068556a(8) =3806698a(9) =14134062a(10) =50991492a(11) =188455830a(12) =685297032a(13) =2528016622a(14) =9240734242a(15) =34073187134a(16) =124993402790a(17) =461002644276
External references
- oeis: A204834