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%I #9 Nov 07 2016 09:12:13
%S 2,3,4,5,6,7,14,15,20,21,23,24,33,34,35,36,37,38,43,44,46,47,50,51,60,
%T 61,64,65,66,67,76,77,90,91,93,94,103,104,105,106,116,117,127,128,140,
%U 141,144,145,147,148,154,155,163,164,167,168,200,201,206,207,215,216,247,248,275,276,285,286,287,288,293,294,295,296,303,304,313,314
%N Numbers n for which abs(n-A277911(n)) = 1.
%H Antti Karttunen, <a href="/A277908/b277908.txt">Table of n, a(n) for n = 1..7096</a>
%F A007310(a(n)) = A277907(n).
%o (Scheme, with _Antti Karttunen_'s IntSeq-library)
%o (define A277908 (MATCHING-POS 1 1 (lambda (n) (= 1 (abs (- n (A277911 n)))))))
%Y Cf. A007310, A277907, A277911.
%Y Bisections: A277909, A277910.
%K nonn
%O 1,1
%A _Antti Karttunen_, Nov 05 2016
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