A277047 Number obtained by concatenating the cubes of the digits of prime(n).

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

Offset: 1

Author

Vincenzo Librandi, Oct 17 2016

Keywords

• nonn
• base
• less

Examples

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

Crossrefs

Cf. A000040, A030078, A048390, A244557.

Programs

Magma

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

Mathematica

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

Formula

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