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%I #5 Jun 03 2023 07:27:58
%S 1,54,242883,246962,261643,266001,353893,380287,425818,457055,542950,
%T 581942,595440,831264,917311,980235,1256341,1719654,6239931,8237549,
%U 8378312,10995744,11650985,15123420,15194370,15442721,19628056,20034738,20308106,26218271,36099782
%N Numbers k such that k and k+1 are both in A363457.
%C Numbers k such that A025487(k) and A025487(k+1) are both products of distinct primorial numbers (A002110), i.e., both terms of A129912.
%C The corresponding values of A025487(k) are 1, 2310, 22841771267013565192326000, 26648733144849159391047000, ..., and the corresponding values of A025487(k+1) are 2, 2520, 22842063073200641551281000, 26649458453137387177510200, ... .
%e 54 is a term since A025487(54) = 2310 and A025487(55) = 2520 are both products of distinct primorial numbers: 2310 = 2 * 3 * 5 * 7 * 11 and 2520 = 2 * (2 * 3) * (2 * 3 * 5 * 7).
%Y Cf. A002110, A025487, A129912, A363457.
%K nonn
%O 1,2
%A _Amiram Eldar_, Jun 03 2023
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