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A004681 Primes written in base 7. 4
2, 3, 5, 10, 14, 16, 23, 25, 32, 41, 43, 52, 56, 61, 65, 104, 113, 115, 124, 131, 133, 142, 146, 155, 166, 203, 205, 212, 214, 221, 241, 245, 254, 256, 302, 304, 313, 322, 326, 335, 344, 346, 362, 364, 401, 403, 421, 436, 443, 445, 452, 461, 463, 506, 515, 524 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = A007093(prime(n)). - Michel Marcus, Sep 03 2016

MATHEMATICA

FromDigits/@IntegerDigits[Prime[Range[1000]], 7] (* Vincenzo Librandi, Sep 03 2016 *)

PROG

(PARI) a(n)=subst(Pol(digits(prime(n), 7)), 'x, 10) \\ Charles R Greathouse IV, Nov 06 2013

(PARI) vector(60, n, fromdigits(digits(prime(n), 7))) \\ G. C. Greubel, Oct 10 2018

(MAGMA) [Seqint(Intseq(NthPrime(n), 7)): n in [1..60]]; // G. C. Greubel, Oct 10 2018

CROSSREFS

Cf. similar sequences listed in A004680.

Cf. A007093.

Sequence in context: A120938 A120610 A090859 * A338589 A222406 A044953

Adjacent sequences:  A004678 A004679 A004680 * A004682 A004683 A004684

KEYWORD

nonn,easy,base

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified February 26 13:20 EST 2021. Contains 341632 sequences. (Running on oeis4.)