Sixth column (m=5) of triangle A060102.

Terms

a(0) =1a(1) =26a(2) =246a(3) =1442a(4) =6292a(5) =22374a(6) =68354a(7) =185614a(8) =458601a(9) =1048476a(10) =2246244a(11) =4553484a(12) =8801104a(13) =16319252a(14) =29174652a(15) =50495236a(16) =84906041a(17) =139104966a(18) =222612170a(19) =348732670a(20) =535778100a(21) =808600650a(22) =1200499950a(23) =1755572130a(24) =2531579505a(25) =3603429336a(26) =5067360936a(27) =7045952056