a(n) = d if the point (d,d) is shared by a record of different Dyck paths in the main diagonal of the diagram of the symmetries of sigma described in A237593.
A279286
a(n) = d if the point (d,d) is shared by a record of different Dyck paths in the main diagonal of the diagram of the symmetries of sigma described in A237593.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =15a(4) =52a(5) =102a(6) =296a(7) =371a(8) =455a(9) =929a(10) =1853a(11) =2034a(12) =4517a(13) =4797a(14) =5829a(15) =6146a(16) =6948a(17) =17577a(18) =18915a(19) =60349a(20) =78369a(21) =85171a(22) =123788a(23) =128596a(24) =415355a(25) =906771a(26) =1308771a(27) =3329668
External references
- oeis: A279286