a(n) = greatest number in row n of array T given by A027023.

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =13a(5) =33a(6) =85a(7) =221a(8) =597a(9) =1655a(10) =4593a(11) =12775a(12) =35629a(13) =99651a(14) =279501a(15) =786071a(16) =2252509a(17) =6460433a(18) =18542169a(19) =53260481a(20) =153115765a(21) =440572993a(22) =1268830877a(23) =3657435745a(24) =10551936125a(25) =30469329025a(26) =88056216233a(27) =256521698097