login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A277047 Number obtained by concatenating the cubes of the digits of prime(n). 1
8, 27, 125, 343, 11, 127, 1343, 1729, 827, 8729, 271, 27343, 641, 6427, 64343, 12527, 125729, 2161, 216343, 3431, 34327, 343729, 51227, 512729, 729343, 101, 1027, 10343, 10729, 1127, 18343, 1271, 127343, 127729, 164729, 11251, 1125343, 121627, 1216343 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

FORMULA

a(n) = A048390(A000040(n)).

EXAMPLE

For n = 7, prime(7) = 17 and a(7) = 1343, which is the concatenation of the cubes of the digits of 17.

MATHEMATICA

Table[FromDigits[Flatten[IntegerDigits/@(IntegerDigits[Prime[n]]^3)]], {n, 50}]

PROG

(MAGMA) [StringToInteger(&cat[IntegerToString(h): h in Reverse([i^3: i in Intseq(p)])]): p in PrimesUpTo(250)];

CROSSREFS

Cf. A000040, A030078, A048390, A244557.

Sequence in context: A153147 A062838 A240859 * A046452 A030078 A051751

Adjacent sequences:  A277044 A277045 A277046 * A277048 A277049 A277050

KEYWORD

nonn,base,less

AUTHOR

Vincenzo Librandi, Oct 17 2016

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 October 17 11:59 EDT 2019. Contains 328110 sequences. (Running on oeis4.)