A126819 Ramanujan numbers (A000594) read mod 512.

1, 488, 252, 64, 222, 96, 152, 0, 21, 304, 84, 256, 310, 448, 136, 0, 434, 8, 44, 384, 416, 32, 328, 0, 423, 240, 408, 0, 102, 320, 352, 0, 176, 336, 464, 320, 318, 480, 296, 0, 378, 256, 180, 256, 54, 320, 272, 0, 425, 88, 312, 384, 366, 448, 216, 0, 336, 112, 228, 0, 198

Offset

1,2

Links

Amiram Eldar, 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.

Mathematica

a[n_] := Mod[RamanujanTau[n], 512]; Array[a, 100] (* Amiram Eldar, Jan 05 2025 *)

Prog

(PARI) a(n) = ramanujantau(n) % 512; \\ Amiram Eldar, Jan 05 2025

Crossrefs

Cf. A000594.

Sequence in context: A203873 A097766 A214806 * A045011 A383349 A253336

Adjacent sequences: A126816 A126817 A126818 * A126820 A126821 A126822

Keyword

nonn

Author

N. J. A. Sloane, Feb 25 2007

Status

approved