Triangle read by rows: T(n,h)/(n-1), where T is the array in A101819.
A101820
Triangle read by rows: T(n,h)/(n-1), where T is the array in A101819.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =14a(5) =12a(6) =1a(7) =45a(8) =150a(9) =60a(10) =1a(11) =124a(12) =1080a(13) =1560a(14) =360a(15) =1a(16) =315a(17) =6020a(18) =21000a(19) =16800a(20) =2520a(21) =1a(22) =762a(23) =28980a(24) =204120a(25) =378000a(26) =191520a(27) =20160a(28) =1a(29) =1785
External references
- oeis: A101820