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A341558
Fourier coefficients of the modular form (1/t_{3A}^2) * F_{3A}^12.
2
0, 0, 1, -12, 54, -100, 45, -108, 692, -108, -2970, 1012, 4542, 13176, -25168, -33660, 27864, 97944, 61641, -295812, -142780, 227172, 613548, -32656, -1181916, 54000, 449990, 1389960, -1340064, -1153484, 2112750, 18684, 1743312, -6661260, 733698, 2254360, 3347622
OFFSET
0,4
LINKS
Masao Koike, Modular forms on non-compact arithmetic triangle groups, Unpublished manuscript [Extensively annotated with OEIS A-numbers by N. J. A. Sloane, Feb 14 2021.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.
FORMULA
1/t_{3A} is A030197, F_{3A} is A004016. - Georg Fischer, Mar 31 2023
CROSSREFS
KEYWORD
sign
AUTHOR
Robert C. Lyons, Feb 14 2021
EXTENSIONS
More terms from Georg Fischer, Mar 31 2023
STATUS
approved