The number of two-component spanning forests of the wheel graph W_{n+1} in which vertices v_1 and v_3 lie in different components.
A391263
The number of two-component spanning forests of the wheel graph W_{n+1} in which vertices v_1 and v_3 lie in different components.
Terms
- a(0) =0a(1) =8a(2) =30a(3) =88a(4) =240a(5) =638a(6) =1680a(7) =4408a(8) =11550a(9) =30248a(10) =79200a(11) =207358a(12) =542880a(13) =1421288a(14) =3720990a(15) =9741688a(16) =25504080a(17) =66770558a(18) =174807600a(19) =457652248a(20) =1198149150a(21) =3136795208a(22) =8212236480a(23) =21499914238a(24) =56287506240a(25) =147362604488a(26) =385800307230
External references
- oeis: A391263