cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A051121 Dates at fortnightly intervals starting on Jan 01 of a leap year in the Julian calendar.

Original entry on oeis.org

1, 15, 29, 12, 26, 11, 25, 8, 22, 6, 20, 3, 17, 1, 15, 29, 12, 26, 9, 23, 7, 21, 4, 18, 2, 16, 30, 13, 27, 10, 24, 10, 24, 7, 21, 5, 19, 2, 16, 30, 14, 28, 11, 25, 8, 22, 6, 20, 3, 17, 1, 15, 29, 12, 26, 9, 23, 9, 23, 6, 20, 4, 18, 1, 15, 29, 13, 27, 10, 24, 7, 21, 5, 19, 2, 16, 30
Offset: 1

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Author

Karen Richardson (s1149414(AT)cedarville.edu)

Keywords

Comments

Periodic sequence with period 1461. - John Cerkan, Mar 26 2017

Crossrefs

Cf. A001356.

Programs

  • Mathematica
    (* First program no longer functions in current Mathematica versions *)
    Needs["Calendar`"]
    Table[ DaysPlus[{4, 1, 1}, 14 n][[3]], {n, 0, 76}] (* Robert G. Wilson v, Apr 18 2010 *)
    Table[DateValue[DayPlus[{2009, 1}, 14 n, CalendarType->"Julian"], "Day"], {n, 0, 77}] (* Michael De Vlieger, Mar 26 2017, Version 10, after Giovanni Resta at A001356; amended, Ray Chandler, Aug 07 2023 *)

Extensions

Name edited by Charles R Greathouse IV, Mar 27 2017