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

1,1

Links

Table of n, a(n) for n=1..50.

Example

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.

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);

Crossrefs

Cf. A035928, A284805.

Sequence in context: A104641 A032703 A234904 * A125821 A239052 A063229

Adjacent sequences: A284803 A284804 A284805 * A284807 A284808 A284809

Keyword

nonn,base,easy

Author

Paolo P. Lava, Apr 03 2017

Status

approved