Number of 3 X n binary matrices with distinct rows, up to row and column permutation; (n,3)-hypergraphs (including empty hyperedge but excluding multiple hyperedges).
A055194
Number of 3 X n binary matrices with distinct rows, up to row and column permutation; (n,3)-hypergraphs (including empty hyperedge but excluding multiple hyperedges).
Terms
- a(0) =3a(1) =16a(2) =52a(3) =134a(4) =302a(5) =614a(6) =1159a(7) =2064a(8) =3504a(9) =5716a(10) =9018a(11) =13818a(12) =20643a(13) =30158a(14) =43190a(15) =60758a(16) =84110a(17) =114746a(18) =154469a(19) =205422a(20) =270132a(21) =351562a(22) =453172a(23) =578962a(24) =733551a(25) =922238a(26) =1151072a(27) =1426932a(28) =1757618a(29) =2151920
External references
- oeis: A055194