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A114872 Even numbers not representable as (p-1)p^k (where p is a prime and k>=0) in ascending order. 0
14, 24, 26, 34, 38, 44, 48, 50, 56, 62, 68, 74, 76, 80, 84, 86, 90, 92, 94, 98, 104, 114, 116, 118, 120, 122, 124, 132, 134, 140, 142, 144, 146, 152, 154, 158, 160, 164, 168, 170, 174, 176, 182, 184, 186, 188, 194, 200, 202, 204, 206, 208, 212, 214, 216, 218 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..56.

EXAMPLE

It is easy to check there is no prime p with 14=(p-1)*p^k and k>=0.

MATHEMATICA

s = Split@ Sort@ Flatten@ Table[(Prime[n] - 1)Prime[n]^k, {n, 60}, {k, 0, 7}]; Complement[ 2Range@116, Take[Union@ Flatten@ s, {2, 58}]] (* Robert G. Wilson v *)

CROSSREFS

Cf. A114871.

Sequence in context: A015850 A020905 A048635 * A106699 A111455 A171124

Adjacent sequences:  A114869 A114870 A114871 * A114873 A114874 A114875

KEYWORD

nonn

AUTHOR

Franz Vrabec, Jan 03 2006

EXTENSIONS

More terms from Robert G. Wilson v, Jan 05 2006

STATUS

approved

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Last modified October 16 15:08 EDT 2021. Contains 348042 sequences. (Running on oeis4.)