After doing some Googling, I found some info on this forum:
https://forums.oracle.com/thread/2367038?tstart=0
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From the cron man page:
http://unixhelp.ed.ac.uk/CGI/man-cgi?crontab+5
"Step values can be used in conjunction with ranges. Following a range
with ``/<number>'' specifies skips of the number's value through the
range. For example, ``0-23/2'' can be used in the hours field to spec-
ify command execution every other hour (the alternative in the V7 stan-
dard is ``0,2,4,6,8,10,12,14,16,18,20,22''). Steps are also permitted
after an asterisk, so if you want to say ``every two hours'', just use
``*/2''."
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I would try this cron statement, it doesn't use any scripts:
15 01 * * 1/2
15 = is for 15 minutes after the hour
01 = for for the hour
* = for every day of the month
* = every month
1/2 = 1 for Monday, /2 to specify the number of skips.
Mike H.