References to A055137

Regard triangle of rencontres numbers (see A008290) as infinite matrix, compute inverse, read by rows.
1, 0, 1, 1, 0, 1, 2, 3, 0, 1, 3, 8, 6, 0, 1, 4, 15, 20, 10, 0, 1, 5, 24, 45

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