Number of (n+2) X (1+2) 0..2 arrays with each row and column divisible by 13, read as a base-3 number with top and left being the most significant digits.

A263334

Number of (n+2) X (1+2) 0..2 arrays with each row and column divisible by 13, read as a base-3 number with top and left being the most significant digits.

Terms

    a(0) =3a(1) =7a(2) =19a(3) =57a(4) =169a(5) =505a(6) =1515a(7) =4543a(8) =13627a(9) =40881a(10) =122641a(11) =367921a(12) =1103763a(13) =3311287a(14) =9933859a(15) =29801577a(16) =89404729a(17) =268214185a(18) =804642555a(19) =2413927663a(20) =7241782987a(21) =21725348961a(22) =65176046881a(23) =195528140641a(24) =586584421923

External references