|
Search: id:A111482
|
|
|
| A111482 |
|
Least triangular number whose digits include a permutation of {0,1,...,n}. |
|
+0
1
|
|
| 0, 10, 120, 12403, 12403, 231540, 1053426, 10623745, 120784653, 1062489753
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Note that this is not "Least triangular number whose digits ARE a permutation of {0,1,...,n}" because there is no such value for n = 3, for instance 3321 = T(81) has no zero. Are there equivalents in all integer bases?
|
|
EXAMPLE
|
a(0) = 0 = T(0).
a(1) = 10 = T(4).
a(2) = 120 = T(15).
a(3) = 12403 = T(157).
a(4) = 12403 = T(157).
a(5) = 231540 = T(680).
a(6) = 1053426 = T(1451).
a(7) = 10623745 = T(4609).
a(8) = 120784653 = T(15542).
a(9) = 1062489753 = T(46097).
|
|
CROSSREFS
|
Cf. A000217.
Sequence in context: A069671 A138445 A138496 this_sequence A095870 A111695 A027770
Adjacent sequences: A111479 A111480 A111481 this_sequence A111483 A111484 A111485
|
|
KEYWORD
|
base,easy,fini,full,nonn
|
|
AUTHOR
|
Jonathan Vos Post (jvospost3(AT)gmail.com), Nov 15 2005
|
|
EXTENSIONS
|
Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 19 2005
|
|
|
Search completed in 0.003 seconds
|
