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%I #10 Mar 31 2023 08:13:56
%S 0,1,12,-801,-27248,-389730,-3120012,-14532448,-35492160,-19420479,
%T 117458280,405309252,1029595248,887517566,-3584009856,-3351877470,
%U -1982054144,-34455379518,33499242252,58483431740,-28952389920,113929105248,227377787184,-603011632584,182257162560
%N Fourier coefficients of the modular form (1/t_{3A}) * sqrt(1 - 108/t_{3A}) * F_{3A}^18.
%H Masao Koike, <a href="/A004016/a004016.pdf">Modular forms on non-compact arithmetic triangle groups</a>, Unpublished manuscript [Extensively annotated with OEIS A-numbers by N. J. A. Sloane, Feb 14 2021. Sloane wrote 2005 on the first page but the internal evidence suggests 1997.] See page 30.
%F 1/t_{3A} is A030197, F_{3A} is A004016. - _Georg Fischer_, Mar 31 2023
%Y Cf. A004016, A030197, A341555, A341560.
%K sign
%O 0,3
%A _Robert C. Lyons_, Feb 14 2021
%E More terms from _Georg Fischer_, Mar 31 2023
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