%I M5243 #18 May 23 2023 18:44:14

%S 33,46728,102266868085272,1069559300034650646049671038948382825526728

%N First differences of A006268.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H Jeffrey Shallit, <a href="http://archive.org/details/jresv80Bn2p285">Predictable regular continued cotangent expansions</a>, J. Res. Nat. Bur. Standards Sect. B 80B (1976), no. 2, 285-290.

%Y Cf. A006268, A006273, A098316.

%K nonn,frac

%O 0,1

%A _N. J. A. Sloane_.

%E Definition corrected by _N. J. A. Sloane_, May 23 2023 using a formula suggested by _R. J. Mathar_, Apr 26 2007.