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A273138 Row number in which n appears for the first time in the infinite Sudoku-type array A269526.

%I A273138 #47 Aug 18 2016 16:41:45
%S A273138 1,2,1,2,2,1,5,2,3,1,1,2,1,2,3,2,3,1,3,1,3,2,4,1,2,1,2,2,1,2,3,2,3,2,
%T A273138 1,3,2,1,2,1,3,4,3,4,3,2,1,6,5,4,2,1,2,3,5,2,3,1,3,1,6,1,3,1,6,5,1,1,
%U A273138 5,4,3,2,1,2,3,2,1,2,5,6,10,8,7,4,3,2,1,6,5,4,3,5,4,4,2,7,5,4,2,2,4,2,4,3
%N A273138 Row number in which n appears for the first time in the infinite Sudoku-type array A269526.
%C A273138 It appears that in the square array A269526 the numbers generally appear for the first time in or near the first few rows.
%H A273138 Alois P. Heinz, <a href="/A273138/b273138.txt">Table of n, a(n) for n = 1..1000</a>
%e A273138 Diagram with the first 18 positive integers located in the position where they appear for first time in the square array A269526:
%e A273138 1, 3, -, 6, -, -, 10, 11, 13, -,  -, 18,
%e A273138 2, 4, 5, -, 8, -,  -, 12, 14, 16, -,
%e A273138 -, -, -, -, 9, -,  -,  -, 15, 17,
%e A273138 -, -, -, -, -, -,  -,  -,  -,
%e A273138 -, 7, -, -, -, -,  -,  -,
%e A273138 -, -, -, -, -, -,  -,
%e A273138 -, -, -, -, -, -,
%e A273138 -, -, -, -, -,
%e A273138 -, -, -, -,
%e A273138 -, -, -,
%e A273138 -, -,
%e A273138 -,
%e A273138 ...
%e A273138 a(9) = 3 because in the square array A269526 the number 9 appears for the first time in the third row.
%e A273138 a(n) <= 6, for n = 1..80.
%Y A273138 First three rows in the square array A269526 are A274315, A274316, A274317.
%Y A273138 Cf. A274529, A273139, A274534.
%K A273138 nonn
%O A273138 1,2
%A A273138 _Omar E. Pol_, Jul 02 2016