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%I #28 Apr 20 2023 10:11:39
%S 0,0,0,0,0,0,0,0,0,0,0,2,3,9,28,138,613,2799
%N Number of triples of prime quadruples < 10^n.
%C Number of triples of prime quadruples with at most n digits. A triple of prime quadruples consists of three prime quadruples with a (minimal) distance of 120.
%H J. Brüggemann, <a href="http://ymmij.de/Nerd/p4/p4-3.pdf">The first triples of prime quadruples</a>. [broken link]
%H J. Brüggemann, <a href="http://ymmij.de/Nerd/p4/calculation.pdf">Calculating prime quadruples, its twins, triples and quadruples</a>. [broken link]
%e For n=12 the a(12)=2 solutions are [(282005261771, 282005261773, 282005261777, 282005261779), (282005261801, 282005261803, 282005261807, 282005261809) , (282005261891, 282005261893, 282005261897, 282005261899)] and [(783976940441, 783976940443, 783976940447, 783976940449), (783976940471, 783976940473, 783976940477, 783976940479), (783976940531, 783976940533, 783976940537, 783976940539)].
%Y Cf. A050258, A338866.
%K nonn,more
%O 1,12
%A _Hans H. Brüggemann_, Nov 13 2020
%E a(18) corrected by _Hans H. Brüggemann_, May 16 2021
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