Triangle of the numbers of unique-valued sequences of all lengths (from 1 to 2n-1) consisting of unit matrices (="matrix units") of order n.
A114595
Triangle of the numbers of unique-valued sequences of all lengths (from 1 to 2n-1) consisting of unit matrices (="matrix units") of order n.
Terms
- a(0) =1a(1) =4a(2) =6a(3) =4a(4) =9a(5) =24a(6) =48a(7) =60a(8) =30a(9) =16a(10) =60a(11) =192a(12) =480a(13) =840a(14) =840a(15) =336a(16) =25a(17) =120a(18) =520a(19) =1920a(20) =5700a(21) =12600a(22) =18480a(23) =15120a(24) =5040a(25) =36a(26) =210a(27) =1140a(28) =5520a(29) =22920
External references
- oeis: A114595