|
Search: id:A122541
|
|
|
| A122541 |
|
Squares that can be seen on a digital clock. |
|
+0
1
|
|
| 0, 1, 4, 9, 16, 25, 36, 49, 100, 121, 144, 225, 256, 324, 400, 441, 529, 625, 729, 841, 900, 1024, 1156, 1225, 1444, 1521, 1600, 1849, 1936, 2025, 2116, 2209, 2304
(list; graph; listen)
|
|
|
OFFSET
|
0,3
|
|
|
COMMENT
|
The smallest and the largest numbers seen on a digital clock are 0 and 2359 respectively. The number that comes immediately after 59 is 100, so that you never see 64, 81 or 169.
|
|
MATHEMATICA
|
Select[ Table[100hr + mnt, {hr, 0, 23}, {mnt, 0, 59}] // Flatten, IntegerQ@ Sqrt@# &] (* Robert G. Wilson v Sep 20 2006 *)
|
|
CROSSREFS
|
Sequence in context: A068879 A030288 A030154 this_sequence A133743 A028820 A122683
Adjacent sequences: A122538 A122539 A122540 this_sequence A122542 A122543 A122544
|
|
KEYWORD
|
nonn,fini,full
|
|
AUTHOR
|
Hassan Taifour (hytaifour(AT)yahoo.co.uk), Sep 19 2006
|
|
|
Search completed in 0.002 seconds
|
