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%I #10 Jan 18 2023 09:34:44
%S 1,2,15,1490,39648,28074040,100808458960497,9966792788887776,
%T 4997150614173857218560,1835682610171974487231869,
%U 889487735339682550112673527109223032,52499930084496170026238596234557616056408988199026780675759699719704592
%N a(n) is the smallest tetranacci number (A000078) with exactly n distinct prime factors.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/DistinctPrimeFactors.html">Distinct Prime Factors</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TetranacciNumber.html">Tetranacci Number</a>
%F a(n) = A000078(A359851(n)). - _Daniel Suteu_, Jan 18 2023
%e a(4) = 39648, because 39648 is a tetranacci number with 4 distinct prime factors {2, 3, 7, 59} and this is the smallest such number.
%Y Cf. A000078, A001221, A060319, A359848, A359851.
%K nonn
%O 0,2
%A _Ilya Gutkovskiy_, Jan 15 2023
%E a(11) from _Daniel Suteu_, Jan 18 2023
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