A278578 a(n) = least value of k such that tau(k) = A000594(k) == n mod 23.
4, 1, 59, 3481, 5959, 12117361, 351581, 344322938, 995153, 35509681, 1223853461, 117428054, 58714027, 2447706922, 71019362, 1990306, 172161469, 703162, 24234722, 11918, 6962, 118, 2
Offset: 0
Examples
tau(4) = -1472 is the first term of A000594 that is a multiple of 23, so a(0) = 4.
References
- Wilton, John Raymond. "Congruence properties of Ramanujan's function τ(n)." Proceedings of the London Mathematical Society 2.1 (1930): 1-10. Table I gives all 23 terms.
Links
- J. R. Wilton, Congruence properties of Ramanujan's function τ(n), annotated copy of page 8 only.
Extensions
More terms from Ray Chandler, Dec 01 2016
Comments