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A072806 Primes of the form 6k+5 written in base 5. 0
10, 21, 32, 43, 104, 131, 142, 203, 214, 241, 313, 324, 401, 412, 423, 1011, 1022, 1044, 1132, 1143, 1204, 1231, 1242, 1402, 1413, 1424, 2001, 2012, 2023, 2034, 2111, 2133, 2221, 2232, 2342, 2403, 2414, 3013, 3024, 3101, 3134, 3211, 3233, 3244, 3321 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..45.

FORMULA

a(n) = A007091(A007528(n)). - Michel Marcus, Jul 09 2018

EXAMPLE

41 = 25 + 3*5 + 1 = 131_5.

MATHEMATICA

Do[s=Prime[n]; If[Mod[s, 6]==5, Print[BaseForm[s, 5]]], {n, 1, 256}]

PROG

(PARI) lista(nn) = for (n=0, nn, if (isprime(p=6*n+5), print1(fromdigits(digits(p, 5)), ", "))); \\ Michel Marcus, Jul 09 2018

CROSSREFS

Cf. A007091, A007528.

Cf. A008713, A072803, A072804, A072805, A072807.

Sequence in context: A065438 A017509 A184989 * A189402 A051942 A250664

Adjacent sequences:  A072803 A072804 A072805 * A072807 A072808 A072809

KEYWORD

base,nonn

AUTHOR

Labos Elemer, Jul 12 2002

STATUS

approved

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Last modified July 18 21:25 EDT 2019. Contains 325144 sequences. (Running on oeis4.)