|
| |
|
|
A070153
|
|
Take pairs (a,b) with Sum(j = a to b; j) = concatenation of a and b. Sort pairs on b then a. This sequence gives b of each pair.
|
|
2
| |
|
|
5, 7, 29, 53, 63, 88, 91, 119, 403, 533, 623, 2148, 2353, 2813, 3835, 5333, 6076, 6223, 7889, 8728, 9163, 25039, 26603, 51513, 53333, 55168, 62223, 85338, 93633, 103463, 119063, 134938, 159518, 175238, 185979, 213073, 219413, 235313, 242818, 264888
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
LINKS
| R. Hoshino, Astonishing Pairs of Numbers, Crux Mathematicorum 27(1), 2001, p. 39-44.
|
|
|
EXAMPLE
| We have 1+...+5=15;2+...+7=27;4+...+29=429;13+...+53=1353;18+...+63=1863, etc.
|
|
|
CROSSREFS
| Cf. A070152, A071297
Sequence in context: A018776 A104683 A153121 * A171619 A153411 A081630
Adjacent sequences: A070150 A070151 A070152 * A070154 A070155 A070156
|
|
|
KEYWORD
| nonn,base,changed
|
|
|
AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), May 06 2002
|
|
|
EXTENSIONS
| More terms from David W. Wilson, Jun 04, 2002
|
| |
|
|
