|
Search: id:A106555
|
|
|
| A106555 |
|
Concatenation of the two divisors of a semiprime, largest divisor first. |
|
+0
1
|
|
| 22, 32, 33, 52, 72, 53, 73, 112, 55, 132, 113, 172, 75, 192, 133, 232, 77, 173, 115, 193, 292
(list; graph; listen)
|
|
|
OFFSET
|
22,1
|
|
|
EXAMPLE
|
First semiprime is 4; 4 is 2*2 -> 22.
Second semiprime is 6; 6 is 3*2 -> 32.
Third semiprime is 9; 9 is 3*3 -> 33.
Fourth semiprime is 10; 10 is 5*2 -> 52.
|
|
CROSSREFS
|
Sequence in context: A043908 A129073 A092215 this_sequence A106557 A142347 A121019
Adjacent sequences: A106552 A106553 A106554 this_sequence A106556 A106557 A106558
|
|
KEYWORD
|
base,easy,nonn,uned
|
|
AUTHOR
|
Eric Angelini (eric.angelini(AT)kntv.be), May 09 2005
|
|
|
Search completed in 0.002 seconds
|
