%I A162222
%S A162222 0,1,2,3,4,13,18,28,118,257,289,308,353,419,4890,4891,9113,16387,66562,
%T A162222 322217,1874374,172449032,268533762,338749352,2204944815,2204944816,
%U A162222 2415951874,3250054360,3250054361,3264337734,4424304070,4424304071
%N A162222 Base 5 perfect digital invariants (written in base 10): numbers equal 
               to the sum of the kth powers of their base-5 digits, for some k.
%H A162222 Joseph Myers, <a href="b162222.txt">Table of n, a(n) for n=1..1640</a> 
               (complete to 700 base 5 digits)
%Y A162222 Cf. A162223 (corresponding exponents), A010346 (restriction to power 
               = number of digits), A033837, A162224. In other bases: A162216 (base 
               3), A162219 (base 4), A162225 (base 6), A162228 (base 7), A162231 
               (base 8), A162234 (base 9), A023052 (base 10).
%Y A162222 Sequence in context: A123215 A126129 A102947 this_sequence A010346 A089142 
               A051855
%Y A162222 Adjacent sequences: A162219 A162220 A162221 this_sequence A162223 A162224 
               A162225
%K A162222 base,nonn
%O A162222 1,3
%A A162222 Joseph Myers (jsm(AT)polyomino.org.uk), Jun 28 2009