A048390 Digits d in decimal expansion of n replaced with d^3.

0, 1, 8, 27, 64, 125, 216, 343, 512, 729, 10, 11, 18, 127, 164, 1125, 1216, 1343, 1512, 1729, 80, 81, 88, 827, 864, 8125, 8216, 8343, 8512, 8729, 270, 271, 278, 2727, 2764, 27125, 27216, 27343, 27512, 27729, 640, 641, 648, 6427, 6464, 64125, 64216, 64343

Offset: 0

Author

Patrick De Geest, Mar 15 1999

Keywords

• nonn
• base

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A048391, A048392, A048393, A048394.

Programs

Magma

[0] cat [StringToInteger(&cat[IntegerToString(h): h in Reverse([i^3: i in Intseq(n)])]): n in [1..50]]; // Vincenzo Librandi, Mar 12 2013

Mathematica

FromDigits[Flatten[IntegerDigits/@(IntegerDigits[#]^3)]]&/@ Range[0,50] (* Harvey P. Dale, Jun 04 2011 *)

PARI

a(n) = my(d = digits(n)); my(s = ""); for (k=1, #d, s = concat(s, Str(d[k]^3))); eval(s); \\ Michel Marcus, Nov 06 2016