45 of them correspond to Fano threefolds and (and all these threefolds have expected N equal to 4, except for one case – 4.7 and period sequence 69).

Fano variety 4.7 (period sequence 69) contradicts to expected N (from Matsuki).

Matsuki says it has just symmetry, so expected N is 5, while for this period sequence expected N is 4.

And This comment explains that remaining 4 period sequences (23, 24, 25 and 27) are parasitic.

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