A090432 - OEIS

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A090432

Primes prime(k) having a greater sum of digits than does k.

2, 3, 5, 7, 17, 19, 29, 31, 37, 41, 43, 47, 53, 59, 67, 71, 73, 79, 83, 89, 97, 113, 127, 137, 139, 149, 157, 167, 173, 179, 181, 191, 193, 197, 199, 229, 233, 239, 257, 269, 277, 281, 283, 293, 307, 349, 353, 359, 367, 373, 379, 383, 389, 397, 409, 419, 439

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OFFSET

1,1

COMMENTS

A090431(a(n)) < 0.

LINKS

Table of n, a(n) for n=1..57.

MATHEMATICA

Prime[#]&/@Select[Range[100], Total[IntegerDigits[Prime[#]]]-Total[IntegerDigits[#]]>0&] (* Michel Lagneau, Nov 07 2015 *)

PROG

(PARI) isok(n) = sumdigits(prime(n)) > sumdigits(n); \\ Michel Marcus, Nov 07 2015

CROSSREFS