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%I #6 Jan 05 2025 10:00:07
%S 0,1,2,3,4,5,6,7,8,13,9,10,11,12,18,14,15,16,17,25,21,20,19,23,22,26,
%T 27,28,24,32,31,30,29,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
%U 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67
%N Nonnegative values in A377091, in order of appearance and with offset 0.
%C Conjecture: this sequence is a permutation of the nonnegative integers.
%H Rémy Sigrist, <a href="/A379873/b379873.txt">Table of n, a(n) for n = 0..10000</a>
%H Rémy Sigrist, <a href="/A379873/a379873.gp.txt">PARI program</a>
%e A377091 begins:
%e 0, 1, 2, -2, -1, 3, 4, 5, -4, -3, 6, 7, 8, -8, -7, -6, -5, -9, -10, -11, -12, 13
%e So the present sequence begins:
%e 0, 1, 2, 3, 4, 5, 6, 7, 8, 13
%o (PARI) \\ See Links section.
%Y Cf. A377091, A379874.
%K nonn
%O 0,3
%A _Rémy Sigrist_, Jan 05 2025