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2

%I #11 Nov 05 2016 07:25:00

%S 115,230,460,461,920,922,1840,1844,3680,3688,7360,7376,14720,14752,

%T 29440,29504,56757,58880,59008,113514,117760,118016,130057,227028,

%U 235520,236032,260114,454056,454933,471040,472064,472533,520228,908112,909866,942080,944128,945066,1040456,1816224,1819732,1884160,1888256,1890132,2034537

%N a(n) = A000196(A277699(A277807(n))).

%C A277807 lists the "sporadic" solutions to A048720(n, A065621(n)) = k^2, i.e., those solutions where n is not in A023758 (not yet proved: these are precisely those solutions where k <> n). This sequence gives the corresponding values of k.

%C If n is included in this sequence, then also 2n is included (and vice versa), thus the sequence is infinite and wholly determined by its odd terms.

%H Antti Karttunen, <a href="/A277806/b277806.txt">Table of n, a(n) for n = 1..57</a>

%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>

%F a(n) = A000196(A277699(A277807(n))).

%o (Scheme) (define (A277806 n) (A000196 (A277699 (A277807 n))))

%Y Cf. A000196, A023758, A048720, A065621, A277699, A277704, A277807.

%K nonn,base

%O 1,1

%A _Antti Karttunen_, Nov 01 2016