Number of perfect matchings on n+3 edges which represent RNA secondary folding structures characterized by the Reeder and Giegerich and the Lyngso and Pedersen families, but not the family characterized by Cao and Chen.
A289031
Number of perfect matchings on n+3 edges which represent RNA secondary folding structures characterized by the Reeder and Giegerich and the Lyngso and Pedersen families, but not the family characterized by Cao and Chen.
Terms
- a(0) =1a(1) =8a(2) =42a(3) =186a(4) =759a(5) =2970a(6) =11369a(7) =43024a(8) =161889a(9) =607630a(10) =2279156a(11) =8552292a(12) =32124073a(13) =120828404a(14) =455175495a(15) =1717506346a(16) =6491412107a(17) =24575174688a(18) =93187097419a(19) =353912403794
External references
- oeis: A289031