|
Search: id:A131497
|
|
|
| A131497 |
|
Values of n such that n^e start with the digits n. |
|
+0
1
|
|
| 1, 4, 15, 56, 213, 813, 3104, 9632089, 36787239, 140499215
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
EXAMPLE
|
213 is a term of this sequence because 213^e = 2133987.96483717..., which starts with 213.
|
|
PROGRAM
|
(PARI) e=exp(1); s=1; for(i=1, 50000, s=i^e; while(s-i>11, s=s/10); if(floor(s)==i, printp1(i, ", "), ))
|
|
CROSSREFS
|
Adjacent sequences: A131494 A131495 A131496 this_sequence A131498 A131499 A131500
Sequence in context: A001791 A047128 A087438 this_sequence A077823 A047108 A125145
|
|
KEYWORD
|
more,nonn,base
|
|
AUTHOR
|
Randy L. Ekl (Randy.Ekl(AT)Motorola.com), Aug 12 2007
|
|
EXTENSIONS
|
3 more terms from Ryan Propper (rpropper(AT)cs.stanford.edu), Dec 30 2007
|
|
|
Search completed in 0.002 seconds
|
