1/4 the number of (n+1) X 3 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
A184597
1/4 the number of (n+1) X 3 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
Terms
- a(0) =5a(1) =24a(2) =156a(3) =1123a(4) =8268a(5) =60569a(6) =446426a(7) =3333345a(8) =25146354a(9) =190958245a(10) =1457049922a(11) =11161985897a(12) =85804483994a(13) =661561762629
External references
- oeis: A184597