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%I #20 Nov 03 2021 22:30:39
%S 0,2,1,8,3,4,10,9,6,5,32,11,12,7,16,34,33,14,13,18,17,40,35,36,15,24,
%T 19,20,42,41,38,37,26,25,22,21,128,43,44,39,48,27,28,23,64,130,129,46,
%U 45,50,49,30,29,66,65,136,131,132,47,56,51,52,31,72,67,68
%N The array in A054238 read by upward antidiagonals.
%C See A054238 for further information.
%e The top left corner of the array is:
%e 0 1 4 5 16 17 20 21
%e 2 3 6 7 18 19 22 23
%e 8 9 12 13 24 25 28 29
%e 10 11 14 15 26 27 30 31
%e 32 33 36 37 48 49 52 53
%e 34 35 38 39 50 51 54 55
%e 40 41 44 45 56 57 60 61
%e 42 43 46 47 58 59 62 63
%Y Cf. A054238 (by downward antidiagonals).
%K nonn,easy,tabl
%O 0,2
%A _Jasper Brown_, Jul 19 2021
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