The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A242486 Numbers n such that A242480(x) = n has no solution. 6
 1, 4, 10, 14, 22, 26, 34, 36, 38, 46, 48, 50, 58, 60, 62, 74, 82, 84, 86, 90, 94, 98, 106, 108, 110, 118, 122, 130, 132, 134, 142, 146, 154, 156, 158, 166, 170, 178, 182, 190, 194, 202, 206, 210, 214, 218, 226, 230, 238, 242, 250, 252, 254, 262, 266, 270, 274 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A242480(n) = (n*(n+1)/2) mod n + sigma(n) mod n + antisigma(n) mod n = A142150(n) + A054024(n) + A229110(n) = (A000217(n) mod n) + (A000203(n) mod n) + (A024816(n) mod n). All values of a(n) are even for n > 1. Complement of A242485. LINKS Table of n, a(n) for n=1..57. EXAMPLE 14 is in the sequence because there is no x whose A242480(x) = 14. CROSSREFS Cf. A242480, A242481, A242482, A242483, A242484, A242485. Sequence in context: A310424 A176551 A175731 * A060031 A112825 A051741 Adjacent sequences: A242483 A242484 A242485 * A242487 A242488 A242489 KEYWORD nonn AUTHOR Jaroslav Krizek, May 27 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 20 21:11 EDT 2024. Contains 371845 sequences. (Running on oeis4.)