Record values in A226657.

Terms

a(0) =5a(1) =7a(2) =23a(3) =389a(4) =409a(5) =1511a(6) =5309a(7) =7351a(8) =37223a(9) =142811a(10) =763271a(11) =8066923a(12) =9182389a(13) =10237391a(14) =24374033a(15) =70353383a(16) =128463691a(17) =334100083a(18) =358453847a(19) =610611193