A284806 Fixed points of the transform A284805.
3, 12, 18, 24, 30, 36, 42, 75, 123, 171, 219, 267, 315, 390, 432, 474, 516, 558, 600, 642, 732, 774, 816, 858, 900, 942, 984, 1074, 1116, 1158, 1200, 1242, 1284, 1326, 1416, 1458, 1500, 1542, 1584, 1626, 1668, 1758, 1800, 1842, 1884, 1926, 1968, 2010, 2100, 2142
Offset: 1
Examples
219 is a term of the sequence because 219 in base 7 is 432, its complement in base 7 is 234 and the digit reverse is again 432 that is 219 in base 10.
Programs
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Maple
P:=proc(q,h) local a,b,k,n; for n from 1 to q do a:=convert(n,base,h); b:=0; for k from 1 to nops(a) do a[k]:=h-1-a[k]; b:=h*b+a[k]; od; if b=n then print(n); fi; od; end: P(10^2,7);