Number of motifs in triangular window of side n.
A007017
Number of motifs in triangular window of side n.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =65a(4) =480a(5) =4851a(6) =67256a(7) =1281258a(8) =33576120a(9) =1211321683a(10) =60197760876
External references
- oeis: A007017