Number of different compositions of the ladder graph L_n.
A078469
Number of different compositions of the ladder graph L_n.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =74a(4) =456a(5) =2810a(6) =17316a(7) =106706a(8) =657552a(9) =4052018a(10) =24969660a(11) =153869978a(12) =948189528a(13) =5843007146a(14) =36006232404a(15) =221880401570
External references
- oeis: A078469