A126831 Ramanujan numbers (A000594) read mod 2187.

1, 2163, 252, 715, 456, 513, 752, 1374, 81, 2178, 984, 846, 1817, 1635, 1188, 799, 612, 243, 1982, 177, 1422, 441, 1284, 702, 1195, 132, 729, 1865, 1299, 2106, 1313, 1224, 837, 621, 1740, 1053, 965, 546, 801, 1062, 573, 864, 689, 1533, 1944, 1989, 75, 144, 264, 1938

Offset

1,2

References

H. P. F. Swinnerton-Dyer, On l-adic representations and congruences for coefficients, of modular forms, pp. 1-55 of Modular Functions of One Variable III (Antwerp 1972), Lect. Notes Math., 350, 1973.

Links

Table of n, a(n) for n=1..50.

Mathematica

Mod[RamanujanTau[Range[50]], 2187] (* Harvey P. Dale, Jan 15 2022 *)

Crossrefs

Cf. A000594.

Sequence in context: A116074 A252563 A035872 * A161998 A020421 A203736

Adjacent sequences: A126828 A126829 A126830 * A126832 A126833 A126834

Keyword

nonn

Author

N. J. A. Sloane, Feb 25 2007

Status

approved