Six 19-Surah Blocks (Alternating Parities)

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The Quran's 114 surahs divide perfectly into six blocks of 19 surahs each (114 ÷ 6 = 19). Within these blocks, multiple parity patterns emerge: Odd-Odd surahs show [6,5,4,1,4,7] distribution with alternating parity (E-O-E-O-E-O), Even-Odd surahs show [4,3,8,3,4,5] with identical alternating pattern, while Odd-Even and Even-Even show uniform patterns.