Like 6-white numbers but with blocks of 6 starting at left.

Terms

a(0) =0a(1) =1a(2) =100000a(3) =1705330a(4) =1818180a(5) =1941030a(6) =2046807a(7) =2227770a(8) =2285010a(9) =2414880a(10) =2598400a(11) =2694600a(12) =2727270a(13) =2728270a(14) =2758239a(15) =2760940a(16) =2857140a(17) =2890810a(18) =2979315a(19) =3040660a(20) =3085911a(21) =3317050a(22) =3541014a(23) =3636460a(24) =4543174