A126841 Ramanujan numbers (A000594) read mod 11^3.

1, 1307, 252, 1190, 837, 607, 559, 627, 823, 1208, 881, 405, 1247, 1225, 626, 865, 625, 213, 110, 442, 1113, 152, 1286, 946, 73, 685, 456, 1041, 1067, 948, 194, 855, 1066, 972, 702, 1085, 586, 22, 128, 385, 597, 1239, 269, 893, 724, 1080, 932, 1027, 1229, 910, 442

Offset: 1

Author

N. J. A. Sloane, Feb 25 2007

Keywords

• nonn

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..10000
• 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.

Crossrefs

Cf. A000594, A126839 (mod 11^1), A126840 (mod 11^2), this sequence (mod 11^3).

Programs

Mathematica

a[n_] := Mod[RamanujanTau[n], 1331]; Array[a, 100] (* Amiram Eldar, Jan 05 2025 *)

PARI

a(n) = ramanujantau(n) % 1331; \\ Amiram Eldar, Jan 05 2025