Square array of Kekulé numbers for the mirror-symmetrical chevrons Ch(m,n), read by antidiagonals (m,n >= 0).
A123349
Square array of Kekulé numbers for the mirror-symmetrical chevrons Ch(m,n), read by antidiagonals (m,n >= 0).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =3a(8) =5a(9) =1a(10) =1a(11) =4a(12) =14a(13) =10a(14) =1a(15) =1a(16) =5a(17) =30a(18) =46a(19) =17a(20) =1a(21) =1a(22) =6a(23) =55a(24) =146a(25) =117a(26) =26a(27) =1a(28) =1a(29) =7
External references
- oeis: A123349