The number of branching configurations of RNA (see Sankoff, 1985) with n or fewer hairpins.
A176006
The number of branching configurations of RNA (see Sankoff, 1985) with n or fewer hairpins.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =32a(5) =122a(6) =516a(7) =2322a(8) =10880a(9) =52466a(10) =258564a(11) =1296282a(12) =6589728a(13) =33887466a(14) =175966212a(15) =921353250a(16) =4858956288a(17) =25786112994a(18) =137604139012a(19) =737922992938
External references
- oeis: A176006