Number of complementary pairs of `homogenized' N-free graphs with n nodes.
A241156
Number of complementary pairs of `homogenized' N-free graphs with n nodes.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =22a(5) =82a(6) =308a(7) =1225a(8) =4954a(9) =20558a(10) =86572a(11) =369942a(12) =1598172a(13) =6972100a(14) =30663656a(15) =135826627a(16) =605386062a(17) =2713066882a(18) =12217967284a(19) =55262144418a(20) =250932354484
External references
- oeis: A241156