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A111679 The n-th row of the following triangle contains n distinct numbers with prime signature of n not included earlier. Sequence contains the triangle read by rows. 2

%I #4 Dec 05 2013 19:57:05

%S 1,2,3,5,7,11,4,9,25,49,13,17,19,23,29,6,10,14,15,21,22,31,37,41,43,

%T 47,53,59,8,27,125,343,1331,2197,4913,6859,121,169,289,361,529,841,

%U 961,1369,1681,26,33,34,35,38,39,46,51,55,57,61,67,71,73,79,83,89,97,101

%N The n-th row of the following triangle contains n distinct numbers with prime signature of n not included earlier. Sequence contains the triangle read by rows.

%e Another rearrangement of natural numbers.

%e 1

%e 2 3

%e 5 7 11

%e 4 9 25 49

%e 13 17 19 23 29

%e 6 10 14 15 21 22

%e ...

%Y Cf. A111680, A111681.

%K nonn,tabl

%O 1,2

%A _Amarnath Murthy_, Aug 16 2005

%E Extended by _Ray Chandler_, Sep 01 2005

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)