Column 0 of triangle A118040, which is the matrix square of triangle A118032; also equals a bisection of A118033, which is column 0 of A118032.
A118041
Column 0 of triangle A118040, which is the matrix square of triangle A118032; also equals a bisection of A118033, which is column 0 of A118032.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =44a(5) =116a(6) =294a(7) =748a(8) =1794a(9) =4352a(10) =10072a(11) =23496a(12) =52862a(13) =118820a(14) =261214a(15) =569604a(16) =1228220a(17) =2601164a(18) =5495022a(19) =11344842a(20) =23610090a(21) =47656726a(22) =97354662a(23) =192295578a(24) =388117650a(25) =753393744a(26) =1495849616a(27) =2851455044a(28) =5606303284
External references
- oeis: A118041