A038840 Cubes that are concatenations of primes.

27, 343, 729, 1331, 2197, 3375, 4913, 5832, 19683, 21952, 24389, 29791, 35937, 54872, 59319, 91125, 103823, 110592, 117649, 148877, 166375, 195112, 205379, 226981, 250047, 314432, 357911, 389017, 421875, 571787, 614125, 681472, 753571, 857375, 941192, 1092727

Offset: 1

Author

Jeff Burch

Keywords

• nonn
• base

Examples

			Examples from _Sean A. Irvine_, Feb 15 2021: (Start)
3^3 = 27 = (2)(7).
18^3 = 5832 = (5)(83)(2).
29^3 = 24389 = (2)(43)(89).
(End)
		

Links

• Sean A. Irvine, Java program (github)

Crossrefs

Cf. A038692.

Programs

PARI

for(n=2,1e2,if(is_A152242(n^3),print1(n^3", "))) \\ Charles R Greathouse IV, Jun 10 2013

Extensions

Missing a(6), a(7), a(9), a(13), a(16)-a(18), a(21), a(23) from Charles R Greathouse IV, Jun 10 2013

Missing terms inserted and more terms from Sean A. Irvine, Feb 15 2021