Number of (n+1) X 2 0..1 arrays with each row and column not divisible by 3, read as a binary number with top and left being the most significant bits.
A263053
Number of (n+1) X 2 0..1 arrays with each row and column not divisible by 3, read as a binary number with top and left being the most significant bits.
Terms
- a(0) =2a(1) =2a(2) =10a(3) =10a(4) =42a(5) =42a(6) =170a(7) =170a(8) =682a(9) =682a(10) =2730a(11) =2730a(12) =10922a(13) =10922a(14) =43690a(15) =43690a(16) =174762a(17) =174762a(18) =699050a(19) =699050a(20) =2796202a(21) =2796202a(22) =11184810a(23) =11184810a(24) =44739242a(25) =44739242a(26) =178956970a(27) =178956970a(28) =715827882a(29) =715827882
External references
- oeis: A263053