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A119067 Triangular numbers composed of digits {0,3,8}. 2

%I #12 Mar 28 2023 21:12:26

%S 3,300,3003,8038803003,80830838088000,8330808803003880083880,

%T 3033038080383000888388003003,8038308338833030088338388883003,

%U 830303888083308003388388830000003

%N Triangular numbers composed of digits {0,3,8}.

%C a(10) > 10^43. - _Tyler Busby_, Mar 28 2023

%H Giovanni Resta, <a href="http://www.numbersaplenty.com/tr/tr038.html">Tridigital Triangular Numbers</a>.

%F a(n) = A000217(A119068(n)). - _Tyler Busby_, Mar 28 2023

%Y Cf. A000217, A119068. See A119033 for a table of cross-references.

%K nonn,base,more

%O 1,1

%A _Giovanni Resta_, May 10 2006

%E One more term from _Max Alekseyev_, Mar 09 2009

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Last modified April 25 09:38 EDT 2024. Contains 371967 sequences. (Running on oeis4.)