Irregular triangle read by rows: row n lists the rank sizes of the "electrical" poset EP_n of circular planar graphs with n boundary vertices.

A232967

Irregular triangle read by rows: row n lists the rank sizes of the "electrical" poset EP_n of circular planar graphs with n boundary vertices.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =1a(7) =1a(8) =6a(9) =14a(10) =16a(11) =10a(12) =4a(13) =1a(14) =1a(15) =10a(16) =40a(17) =85a(18) =110a(19) =97a(20) =65a(21) =35a(22) =15a(23) =5a(24) =1a(25) =1a(26) =15a(27) =90a(28) =295a(29) =609

External references