One-sixth the area of the smallest primitive d-arithmetic triangle, where d=A072330(n).

Terms

a(0) =1a(1) =26a(2) =21a(3) =91a(4) =95a(5) =196a(6) =341a(7) =536a(8) =790a(9) =259a(10) =559a(11) =1030a(12) =654a(13) =2926a(14) =549a(15) =4029a(16) =1241a(17) =4706a(18) =5529a(19) =5335a(20) =1729a(21) =1001a(22) =1544a(23) =2786a(24) =9324a(25) =12649a(26) =4446a(27) =8645a(28) =9591a(29) =1651