OFFSET
0,2
COMMENTS
The sequence is given for its first 1249 terms which corresponds to 12 hours. At 12:00:00 the clock is back to its initial state but as the time wheel keeps on turning a(1248) = 43200 + a(0) , a(1249) = 43200 + a(1), a(n + p*1248) = a(n) + p*43200 for any nonnegative integer p.
EXAMPLE
a(0) = 0 as the second-hand is over the minute-hand and the hour-hand at 0:00:00,
a(1) = 60 as the second-hand is over the hour-hand at 0:01:00,
a(2) = 61 as the second-hand is over the minute-hand at 0:01:01,...
a(23) = 721 as the second-hand is over the hour-hand at 0:12:01.
PROG
(Python 2.7)
m0 = 0
s = [0]
for i in range(1, 60*12+1):
....m0 += 1
....m = m0 % 60
....h = (m0 // 12) % 60
....a, b = i * 60 + h, i * 60 + m
....s.append(a)
....s.append(b)
s = list(sorted(set(s)))
for i in range(len(s)):
....print ('A256749('+str(i)+') = '+str(s[i]))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Martin Y. Champel, Apr 09 2015
STATUS
approved