SELECT	execution	= d.[DATE],
	[CHECK]		= DATEADD(DAY, n.num, d.[DATE])	
FROM	F_TABLE_DATE('2008-01-01', '2020-12-31') d
	CROSS JOIN
	(
		SELECT	num =  0 UNION ALL	-- same DAY (Wed)
		SELECT	num =  3 UNION ALL	-- the sat
		SELECT	num =  7 UNION ALL	-- 1 week FROM Wed
		SELECT  num = 10 UNION ALL	-- 1 week FROM Sat
		SELECT	num = 28 UNION ALL	-- 4 week FROM Wed
		SELECT  num = 31 		-- 4 week FROM Sat
	) n
WHERE	d.WEEKDAY_NAME = 'Wed'
ORDER BY execution, [CHECK]