The On-Line Encyclopedia of Integer Sequences (OEIS)

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A131687

Days of the year that are prime numbers in format mmdd (2-digit month followed by 2-digit year).
(history; published version)

#2 by Russ Cox at Fri Mar 30 18:49:09 EDT 2012

AUTHOR

_Tanya Khovanova (tanyakh(AT)yahoo.com), _, Sep 14 2007

Discussion

Fri Mar 30

18:49

OEIS Server: https://oeis.org/edit/global/235

#1 by N. J. A. Sloane at Sat Nov 10 03:00:00 EST 2007

NAME

Days of the year that are prime numbers in format mmdd (2-digit month followed by 2-digit year).

DATA

101, 103, 107, 109, 113, 127, 131, 211, 223, 227, 229, 307, 311, 313, 317, 331, 401, 409, 419, 421, 503, 509, 521, 523, 601, 607, 613, 617, 619, 701, 709, 719, 727, 809, 811, 821, 823, 827, 829, 907, 911, 919, 929, 1009, 1013, 1019, 1021, 1031, 1103, 1109, 1117, 1123, 1129, 1201, 1213, 1217, 1223, 1229, 1231

OFFSET

1,1

COMMENTS

229 is a prime day of the year only on leap years.

KEYWORD

easy,fini,full,nonn,base

AUTHOR

Tanya Khovanova (tanyakh(AT)yahoo.com), Sep 14 2007

STATUS

approved