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A094275 Triangle read by rows: for 1 <= k < n, a(n, k) is the least number not already used. For n > 1, a(n, n) is the least number not already used such that the product of the n-th row is a multiple of the product of the previous row. 4

%I #6 Dec 05 2013 19:56:49

%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,30,15,16,17,18,19,1001,20,21,22,23,

%T 24,25,12597,26,27,28,29,31,32,33,928625,34,35,36,37,38,39,40,41,

%U 6823410,42,43,44,45,46,47,48,49,50,5726524817,51,52,53,54,55,56,57,58

%N Triangle read by rows: for 1 <= k < n, a(n, k) is the least number not already used. For n > 1, a(n, n) is the least number not already used such that the product of the n-th row is a multiple of the product of the previous row.

%Y Cf. A094276, A094277, A094278, A094279.

%K nonn,easy,less,tabl

%O 1,2

%A _Amarnath Murthy_, Apr 27 2004

%E Edited and extended by _David Wasserman_, Jul 26 2006

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Last modified April 20 11:00 EDT 2024. Contains 371838 sequences. (Running on oeis4.)