OFFSET
1,3
COMMENTS
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
KEYWORD
nonn,fini,full,base
AUTHOR
Hassan Taifour (hytaifour(AT)yahoo.co.uk), Sep 19 2006
STATUS
approved