cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A380181 Distinct nonpositive values of A380180, negated, in order of appearance and with offset 0.

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%I A380181 #11 Jan 17 2025 16:31:47
%S A380181 0,1,4,3,2,13,12,10,9,11,8,7,6,5,40,39,37,36,31,30,28,27,38,35,29,26,
%T A380181 34,33,25,24,32,23,22,21,19,18,20,17,16,15,14,121,120,118,117,112,111,
%U A380181 109,108,94,93,91,90,85,84,82,81,119,116,110,107,92,89,83,80
%N A380181 Distinct nonpositive values of A380180, negated, in order of appearance and with offset 0.
%C A380181 This sequence is a permutation of the nonnegative integers with inverse A380182.
%H A380181 Rémy Sigrist, <a href="/A380181/b380181.txt">Table of n, a(n) for n = 0..9832</a>
%H A380181 Rémy Sigrist, <a href="/A380181/a380181.gp.txt">PARI program</a>
%H A380181 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%e A380181 Sequence A380180 begins:     0, 0, 1, -1, 0, 2, 3, 0, 3, 0, 1, 3, 4, -4, -3.
%e A380181 The present sequence begins: 0,        1,                             4,  3.
%o A380181 (PARI) \\ See Links section.
%Y A380181 Cf. A380180, A380182 (inverse).
%K A380181 nonn,base
%O A380181 0,3
%A A380181 _Rémy Sigrist_, Jan 15 2025