a(n) = A168174(n)-10^12.

Terms

a(0) =1159a(1) =2217a(2) =3463a(3) =4161a(4) =5713a(5) =5911a(6) =6037a(7) =6451a(8) =6699a(9) =7333a(10) =9403a(11) =10249a(12) =10447a(13) =10483a(14) =11019a(15) =11347a(16) =11383a(17) =13039a(18) =13503a(19) =14173a(20) =15127a(21) =15879a(22) =18489a(23) =19569a(24) =20307a(25) =20563a(26) =21333a(27) =22921a(28) =23713a(29) =24613