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From fundamental unit of Z[ (-n)^{1/4} ].
(Formerly M0342)
3

%I M0342 #15 Jun 23 2020 06:19:19

%S 1,0,-2,2,4,-26,2,198,12,96,-14,28,2,4,-204,7,58332,11821890,6,36,

%T 440140,-8909082,46,1405,12,220224,2,-411912,57396,28184,-360,-74,-4,

%U -77790,-390,289258,-183064217333724

%N From fundamental unit of Z[ (-n)^{1/4} ].

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

%H J. Buchmann, <a href="https://doi.org/10.1090/S0025-5718-1987-0866097-1">The computation of the fundamental unit of totally complex quartic orders</a>, Math. Comp. 48 (1987), 39-54.

%Y Cf. A006828, A006830, A006831.

%K sign,more

%O 1,3

%A _N. J. A. Sloane_.