References to A161985

Table read by rows: the number 2n+1 followed by the numbers n+1 to 3n+1.
1, 1, 3, 2, 3, 4, 5, 3, 4, 5, 6, 7, 7, 4, 5, 6, 7, 8, 9, 10, 9, 5, 6, 7, 8, 9, 10, 11, 12, 13, 11

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