A075648 - OEIS

%I #13 Nov 18 2016 00:59:21

%S 1,2,3,7,8,14,22,31,40,60,82,83,108,162,205,221,222,342,379,399,421,

%T 508,597,669,718,894,947,727,1183,1300,1361,1517,1551,1754,1823,1999,

%U 2288,2548,2625,2821,3142,3350,3519,3995,2479,4320,4321,2081,4660,5409,5054

%N Left side of the triangle A075652.

%C It seems that a(n) = O(n^2.9). - _Andrey Zabolotskiy_, Nov 09 2016

%H Andrey Zabolotskiy, <a href="/A075648/b075648.txt">Table of n, a(n) for n = 1..260</a>

%e a(4) = 7 and not 5 as 9 has already occurred in the previous row.

%Y Cf. A075649, A075650, A075651, A075652.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Oct 01 2002

%E More terms from _David Wasserman_, Jan 22 2005

%E New name from _Ivan Neretin_, Nov 09 2016