Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.
A232582
Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.
Terms
- a(0) =0a(1) =2a(2) =4a(3) =6a(4) =10a(5) =18a(6) =32a(7) =56a(8) =98a(9) =172a(10) =302a(11) =530a(12) =930a(13) =1632a(14) =2864a(15) =5026a(16) =8820a(17) =15478a(18) =27162a(19) =47666a(20) =83648a(21) =146792a(22) =257602a(23) =452060a(24) =793310a(25) =1392162a(26) =2443074a(27) =4287296a(28) =7523680a(29) =13203138
External references
- oeis: A232582