Number of n X 3 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2.
A276294
Number of n X 3 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2.
Terms
- a(0) =2a(1) =12a(2) =45a(3) =189a(4) =805a(5) =3437a(6) =14693a(7) =62829a(8) =268677a(9) =1148973a(10) =4913509a(11) =21012333a(12) =89858053a(13) =384272941a(14) =1643321829a(15) =7027574381a(16) =30053031045a(17) =128520116269a(18) =549609131621
External references
- oeis: A276294