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A261190 Leap years in Symmetry454 calendar, starting year AD 1. 1
3, 9, 15, 20, 26, 31, 37, 43, 48, 54, 60, 65, 71, 77, 82, 88, 93, 99, 105, 110, 116, 122, 127, 133, 139, 144, 150, 155, 161, 167, 172, 178, 184, 189, 195, 201, 206, 212, 217, 223, 229, 234, 240, 246, 251, 257, 263, 268, 274, 279, 285, 291, 296, 302, 308, 313 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Year n is a leap year if and only if ((52 * n + 146) % 293) < 52.
LINKS
I. Bromberg, 52/293 Symmetry454 (start Monday) Leap Years (Table of initial 780 terms)
Wikipedia, Symmetry454
PROG
(PARI) is(n) = ((52*n+146)%293) < 52
CROSSREFS
Sequence in context: A093414 A123998 A117105 * A282031 A307202 A162488
KEYWORD
nonn
AUTHOR
Felix Fröhlich, Aug 11 2015
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)