A235398 Sum of digits of the cubes of prime numbers.

8, 9, 8, 10, 8, 19, 17, 28, 17, 26, 28, 19, 26, 28, 17, 35, 26, 28, 19, 26, 28, 28, 35, 35, 28, 8, 28, 17, 28, 35, 28, 26, 26, 37, 35, 28, 46, 28, 35, 35, 35, 37, 44, 37, 35, 46, 37, 37, 35, 37, 35, 35, 37, 26, 44, 35, 35, 28, 28, 26, 37, 35, 37, 17, 37, 26

Offset: 1

Author

Antonio Graciá Llorente, Jan 09 2014

Keywords

• nonn
• base

Crossrefs

Cf. A004164, A007953, A123157.

Programs

Maple

read("transforms") :
A235398 := proc(n)
    digsum(ithprime(n)^3) ;
end proc:
seq(A235398(n),n=1..40) ; # R. J. Mathar, Jul 19 2024

PARI

a(n) = sumdigits(prime(n)^3); \\ Michel Marcus, Jan 09 2014

Formula

a(n) = A007953(A030078(n)). - R. J. Mathar, Jul 19 2024