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A050942 Numbers that are not the sum of 2 or more consecutive nonzero triangular numbers. 3

%I #12 Dec 23 2017 09:11:50

%S 1,2,3,5,6,7,8,11,12,13,14,15,17,18,21,22,23,24,26,27,28,29,30,32,33,

%T 37,38,39,40,41,42,43,44,45,47,48,50,51,53,54,57,58,59,60,61,62,63,65,

%U 66,67,68,69,70,71,72,73,75,76,77,78,79,82,86,87,88

%N Numbers that are not the sum of 2 or more consecutive nonzero triangular numbers.

%C In other words, numbers that are not the difference of two non-adjacent tetrahedral numbers (A000292). - _Ivan Neretin_, Dec 20 2017

%H Chai Wah Wu, <a href="/A050942/b050942.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A050943.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jan 02 2000

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