login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A075110 Concatenation of n-th prime and n in decimal notation. 10
21, 32, 53, 74, 115, 136, 177, 198, 239, 2910, 3111, 3712, 4113, 4314, 4715, 5316, 5917, 6118, 6719, 7120, 7321, 7922, 8323, 8924, 9725, 10126, 10327, 10728, 10929, 11330, 12731, 13132, 13733, 13934, 14935, 15136, 15737, 16338, 16739, 17340 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A000040(n)*10^(A004216(n)+1) + n.

MATHEMATICA

Table[FromDigits[Join[IntegerDigits[Prime[n]], IntegerDigits[n]]], {n, 40}] (* Vincenzo Librandi, Mar 24 2019 *)

PROG

(Haskell)

a075110 n = read $ show (a000040 n) ++ show n :: Integer

-- Reinhard Zumkeller, Jul 08 2014

(PARI) a(n) = eval(Str(prime(n), n)); \\ Michel Marcus, Mar 24 2019

(MAGMA) [Seqint(Intseq(n) cat Intseq(NthPrime(n))): n in [1..46]]; // Vincenzo Librandi, Mar 24 2019

CROSSREFS

Cf. A045532.

Sequence in context: A319477 A035137 A261910 * A219684 A219881 A181677

Adjacent sequences:  A075107 A075108 A075109 * A075111 A075112 A075113

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Sep 03 2002

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 13 08:26 EDT 2020. Contains 335685 sequences. (Running on oeis4.)