Total number of ordered graceful labelings of graphs with n edges.
A342225
Total number of ordered graceful labelings of graphs with n edges.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =12a(4) =40a(5) =182a(6) =906a(7) =5404a(8) =35494a(9) =264178a(10) =2124078a(11) =18965372a(12) =181080940a(13) =1879988162a(14) =20764521072a(15) =246377199752
External references
- oeis: A342225