|
| |
|
|
A131497
|
|
Values of n such that n^e start with the digits n.
|
|
0
| |
|
|
1, 4, 15, 56, 213, 813, 3104, 9632089, 36787239, 140499215, 2049402728, 7827156489, 29893772401, 6360445726168
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
EXAMPLE
| 213 is a term of this sequence because 213^e = 2133987.96483717..., which starts with 213.
|
|
|
PROG
| (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
| Sequence in context: A001791 A047128 A087438 * A174958 A077823 A047108
Adjacent sequences: A131494 A131495 A131496 * A131498 A131499 A131500
|
|
|
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
a(11)-a(14) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 29 2010
|
| |
|
|
