|
Search: id:A090561
|
|
|
| A090561 |
|
Least n-th power that begins with k^(n-1) for some k > 1. |
|
+0
2
|
|
| 1, 4, 64, 81, 16807, 1000000, 10000000, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 10000000000000, 100000000000000, 1000000000000000, 10000000000000000, 100000000000000000
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
a(n) = 10^n for 6 <= n <= 500 (I haven't checked past 500.) - David Wasserman (wasserma(AT)spawar.navy.mil), Jan 05 2006
|
|
EXAMPLE
|
a(1) = 1 because 1 begins with 2^0. a(5) = 16807 because 16807 begins with 2^4.
|
|
CROSSREFS
|
Cf. A090568.
Cf. A067442.
Sequence in context: A094323 A024256 A111444 this_sequence A016934 A056229 A062271
Adjacent sequences: A090558 A090559 A090560 this_sequence A090562 A090563 A090564
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 11 2003
|
|
EXTENSIONS
|
Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Jan 05 2006
|
|
|
Search completed in 0.002 seconds
|
