A126835 Ramanujan numbers (A000594) read mod 625.

1, 601, 252, 403, 455, 202, 131, 105, 107, 330, 237, 306, 387, 606, 285, 261, 316, 557, 170, 240, 512, 562, 147, 210, 150, 87, 295, 293, 380, 35, 582, 571, 349, 541, 230, 621, 436, 295, 24, 275, 442, 212, 542, 511, 560, 222, 371, 147, 418, 150, 257, 336, 552, 420

Offset

1,2

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.

Mathematica

a[n_] := Mod[RamanujanTau[n], 625]; Array[a, 100] (* Amiram Eldar, Jan 05 2025 *)

Prog

(PARI) a(n) = ramanujantau(n) % 625; \\ Amiram Eldar, Jan 05 2025

Crossrefs

Cf. A000594, A126832 (mod 5^1), A126833 (mod 5^2), A126834 (mod 5^3), this sequence (mod 5^4).

Sequence in context: A035850 A093260 A008689 * A020370 A325089 A050202

Adjacent sequences: A126832 A126833 A126834 * A126836 A126837 A126838

Keyword

nonn,changed

Author

N. J. A. Sloane, Feb 25 2007

Status

approved