|
| |
|
|
A116171
|
|
Numbers n such that n concatenated with n+2 gives the product of two numbers which differ by 3.
|
|
7
| |
|
|
8, 52, 63716866, 48793687600063875363014809897052, 60020753655608135708762056127156, 60446518621981165303188950156776, 71135436903815748345367595855336, 72876856643103028189103298533248
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Also numbers n such that n concatenated with n+4 gives the product of two numbers which differ by 1.
|
|
|
EXAMPLE
| 63716866//63716868 = 79822844 * 79822847, where // denotes concatenation.
63716866//63716870 = 79822845 * 79822846.
|
|
|
CROSSREFS
| Cf. A116099, A116170, A116172, A116112, A116302, A116099, A115428, A116314.
Sequence in context: A155590 A130153 A199700 * A099622 A198846 A110099
Adjacent sequences: A116168 A116169 A116170 * A116172 A116173 A116174
|
|
|
KEYWORD
| nonn,base
|
|
|
AUTHOR
| Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006
|
|
|
EXTENSIONS
| Edited by N. J. A. Sloane (njas(AT)research.att.com), Apr 13 2007
|
| |
|
|
