|
Search: id:A048353
|
|
|
| A048353 |
|
a(n)^2 is the smallest square containing exactly n 8's. |
|
+0
2
|
|
| 9, 83, 298, 1378, 8878, 29641, 298141, 623609, 9321378, 28072917, 94121667, 329877083, 4341484641, 29478276559, 62360956378, 151284113141
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Eric Weisstein's World of Mathematics, Square Number
|
|
MATHEMATICA
|
a[n_] := Module[{i = 1}, While[DigitCount[i^2][[8]] != n, i++ ]; i]; - Sam Handler (sam_5_5_5_0(AT)yahoo.com), Aug 22 2006
|
|
CROSSREFS
|
Cf. A036515, A034992.
Sequence in context: A041146 A015497 A039357 this_sequence A037502 A037679 A015579
Adjacent sequences: A048350 A048351 A048352 this_sequence A048354 A048355 A048356
|
|
KEYWORD
|
nonn,base,more
|
|
AUTHOR
|
Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 1999.
|
|
EXTENSIONS
|
a(13)-a(16) from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Jan 24 2009
|
|
|
Search completed in 0.002 seconds
|
