|
Search: id:A096238
|
|
|
| A096238 |
|
Number of n-digit base-5 deletable primes. |
|
+0
1
|
|
| 2, 6, 14, 32, 69, 156, 377, 855, 2072, 5131, 12922, 32619, 83945, 217305, 571560, 1517012, 4056107
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
A prime p is a base-b deletable prime if when written in base b it has the property that removing some digit leaves either the empty string or another deletable prime. "Digit" means digit in base b.
Deleting a digit cannot leave any leading zeros in the new string. For example, deleting the 2 in 2003 to obtain 003 is not allowed.
|
|
CROSSREFS
|
Cf. A080608, A080603, A096235-A096246.
Sequence in context: A002524 A055292 A035592 this_sequence A074878 A065495 A131352
Adjacent sequences: A096235 A096236 A096237 this_sequence A096239 A096240 A096241
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
Michael Kleber (michael.kleber(AT)gmail.com), Feb 28 2003
|
|
EXTENSIONS
|
12 more terms from Ryan Propper (rpropper(AT)stanford.edu), Jul 19 2005
|
|
|
Search completed in 0.002 seconds
|
