A341560 Fourier coefficients of the modular form (1/t_{3A}) * sqrt( 1-108/t_{3A} ) * F_{3A}^14.

0, 1, -12, -729, -8048, -30210, 8748, 235088, 194880, 531441, 362520, -11182908, 5866992, 8049614, -2821056, 22023090, 63590656, -117494622, -6377292, -214061380, 243130080, -171379152, 134194896, 830555544, -142067520, -308059025, -96595368, -387420489, -1891988224

Offset: 0

Author

Robert C. Lyons, Feb 14 2021

Keywords

• sign

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• Masao Koike, Modular forms on non-compact arithmetic triangle groups, Unpublished manuscript [Extensively annotated with OEIS A-numbers by N. J. A. Sloane, Feb 14 2021.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.

Crossrefs

Cf. A004016, A030197, A341305, A341554, A341559.

Formula

1/t_{3A} is A030197, F_{3A} is A004016. - Georg Fischer, Mar 31 2023

Extensions

More terms from Georg Fischer, Mar 31 2023