|
| |
|
|
A055239
|
|
Numbers which not divisible by any of their digits in at least one base.
|
|
6
| |
|
|
11, 13, 17, 19, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| It seems likely all integers greater than 120 appear in this sequence
|
|
|
EXAMPLE
| 9 is excluded because it can be written as 111111111, 1001, 100, 21, 14, 13, 12, 11, 10 or 9 and in every case there is a digit which divides 9; 11 is in the sequence because in base 4 it is written 23 and 11 is not divisible by either 2 or 3
|
|
|
CROSSREFS
| Cf. A038772, A055238-A055242.
Sequence in context: A068569 A124176 A031979 * A138708 A061116 A048388
Adjacent sequences: A055236 A055237 A055238 * A055240 A055241 A055242
|
|
|
KEYWORD
| base,easy,nonn
|
|
|
AUTHOR
| Henry Bottomley (se16(AT)btinternet.com), May 04 2000
|
| |
|
|
