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

Author

Paolo P. Lava, Apr 03 2017

Keywords

• nonn
• base
• easy

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.
		

Crossrefs

Cf. A035928, A284805.

Programs

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);