Number of trees on n nodes with 2 forbidden limbs of sizes 7 and 8.
A269484
Number of trees on n nodes with 2 forbidden limbs of sizes 7 and 8.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =6a(4) =25a(5) =114a(6) =591a(7) =3297a(8) =19528a(9) =120670a(10) =771276a(11) =5061164a(12) =33940023a(13) =231727313a(14) =1606423838a(15) =11282801628a(16) =80149508517a(17) =575046400808
External references
- oeis: A269484