%I #15 Jun 01 2022 17:41:46
%S 2,6,12,18,24,32,42,48,60,68,74,84,98,104,110,128,138,150,158,168,180,
%T 192,198,212,228,234,242,258,270,278,284,308,314,332,348,354,368,380,
%U 390,402,420,432,440,450,462,468,488,500,510,524,548,564,572,588,600,608,618,632,644,654
%N A348773(2*n+1).
%C The first differences are 4, 6, 6, 6, 8, ... and apart from the initial term4, appears to coincide with A155067, the differences between successive odd-indexed primes. If confirmed, this will be one of the few formulas known for A307720.
%C The other bisection of A348773, A348775, seems much more mysterious.
%H N. J. A. Sloane, <a href="/A348774/b348774.txt">Table of n, a(n) for n = 0..613</a>
%Y Cf. A155067, A307720, A307730, A307632, A348773, A348775.
%K nonn
%O 0,1
%A _N. J. A. Sloane_, Nov 07 2021
|