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.

A360646 Square array A(n, k), n, k > 0, read by antidiagonals upwards; A(n, k) = A066208(n) * A066207(k).

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%I A360646 #7 Feb 16 2023 05:06:19
%S A360646 1,2,3,4,6,7,5,12,14,9,8,15,28,18,13,10,24,35,36,26,19,11,30,56,45,52,
%T A360646 38,21,16,33,70,72,65,76,42,27,17,48,77,90,104,95,84,54,29,20,51,112,
%U A360646 99,130,152,105,108,58,37,22,60,119,144,143,190,168,135,116,74,39
%N A360646 Square array A(n, k), n, k > 0, read by antidiagonals upwards; A(n, k) = A066208(n) * A066207(k).
%C A360646 Every positive integer occurs exactly once.
%H A360646 Rémy Sigrist, <a href="/A360646/a360646.gp.txt">PARI program</a>
%H A360646 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F A360646 A(n, 1) = A066208(n) = A247503(A(n,k)).
%F A360646 A(1, k) = A066207(k) = A248101(A(n,k)).
%e A360646 Array A(n, k) begins:
%e A360646   n\k |  1   2    3    4    5    6    7    8    9   10
%e A360646   ----+-----------------------------------------------
%e A360646     1 |  1   3    7    9   13   19   21   27   29   37
%e A360646     2 |  2   6   14   18   26   38   42   54   58   74
%e A360646     3 |  4  12   28   36   52   76   84  108  116  148
%e A360646     4 |  5  15   35   45   65   95  105  135  145  185
%e A360646     5 |  8  24   56   72  104  152  168  216  232  296
%e A360646     6 | 10  30   70   90  130  190  210  270  290  370
%e A360646     7 | 11  33   77   99  143  209  231  297  319  407
%e A360646     8 | 16  48  112  144  208  304  336  432  464  592
%e A360646     9 | 17  51  119  153  221  323  357  459  493  629
%e A360646    10 | 20  60  140  180  260  380  420  540  580  740
%o A360646 (PARI) See Links section.
%Y A360646 Cf. A249327, A066207, A066208, A247503, A248101.
%K A360646 nonn,tabl
%O A360646 1,2
%A A360646 _Rémy Sigrist_, Feb 15 2023