n sets a new record in A094830.

Terms

a(0) =1a(1) =4a(2) =8a(3) =21a(4) =27a(5) =64a(6) =253a(7) =1629a(8) =4284a(9) =4416a(10) =5992a(11) =19621a(12) =78399a(13) =204347a(14) =298735a(15) =848999a(16) =1202402a(17) =1496888a(18) =1539370a(19) =1987614a(20) =2859485a(21) =5460483a(22) =6160282a(23) =14539187a(24) =22103424a(25) =40412450a(26) =95261053a(27) =105703913a(28) =105703932a(29) =123434487