A085820 - OEIS

A085820

Possible two-digit endings of primes (with leading zeros).

1, 3, 7, 9, 11, 13, 17, 19, 21, 23, 27, 29, 31, 33, 37, 39, 41, 43, 47, 49, 51, 53, 57, 59, 61, 63, 67, 69, 71, 73, 77, 79, 81, 83, 87, 89, 91, 93, 97, 99

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OFFSET

1,2

COMMENTS

This is a finite sequence which contains the first few terms of A045572.

Smallest prime > A085820(n) ending with A085820(n) in A085821.

LINKS

Table of n, a(n) for n=1..40.

Caldwell and Honaker, Prime Curios!: NASCAR Prime Puzzle

MATHEMATICA

Mod[Prime[Range[5, 1000]], 100]//Union (* Harvey P. Dale, Jul 10 2017 *)

PROG

(Sage) [x for x in range(100) if kronecker(x^2, 100)==1] # Zerinvary Lajos, Dec 07 2009

CROSSREFS

Cf. A085821.

Sequence in context: A245586 A005818 A288444 * A045572 A069254 A105585

Adjacent sequences: A085817 A085818 A085819 * A085821 A085822 A085823

KEYWORD

full,nonn,fini,base

AUTHOR

Zak Seidov, Jul 04 2003

STATUS

approved