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A141616 Even terms in A120070.

%I A141616 #12 Jul 20 2020 13:02:21
%S A141616 8,12,24,16,32,20,48,40,24,60,48,28,80,72,56,32,96,84,64,36,120,112,
%T A141616 96,72,40,140,128,108,80,44,168,160,144,120,88,48,192,180,160,132,96,
%U A141616 52,224,216,200,176,144,104,56,252,240,220,192,156,112,60,288,280,264,240,208,168,120,64,320,308,288
%N A141616 Even terms in A120070.
%C A141616 All terms are multiples of 4.
%C A141616 Row length L = Ceiling(n/2 - 1), thus the smallest value of n in A120070 to produce even terms is n = 3. - _Michael De Vlieger_, Apr 14 2016
%H A141616 Michael De Vlieger, <a href="/A141616/b141616.txt">Table of n, a(n) for n = 1..10000</a>
%e A141616 Irregular triangle:
%e A141616 n    Even values of A120070(n)
%e A141616 3    8
%e A141616 4    12
%e A141616 5    24    16
%e A141616 6    32    20
%e A141616 7    48    40    24
%e A141616 8    60    48    28
%e A141616 9    80    72    56    32
%e A141616 10   96    84    64    36
%e A141616 11  120   112    96    72    40
%e A141616 12  140   128   108    80    44
%e A141616 ...
%t A141616 Table[n^2 - k^2, {n, 3, 18}, {k, n}] /. m_ /; Or[OddQ@ m, m == 0] -> Nothing // Flatten (* _Michael De Vlieger_, Apr 14 2016, after _Alonso del Arte_ at A120070 *)
%K A141616 nonn,tabf
%O A141616 1,1
%A A141616 _Paul Curtz_, Aug 23 2008
%E A141616 More terms from _Michael De Vlieger_, Apr 14 2016