proposed
approved
editing
1
1....1
1....2....2
1....3....4....4
1....4....7....8....8
1....5....11...15...16...16
Cf. A193722, A128175, A193823, A045623 (row sums).
Row sums are A045623. - F. Chapoton, Sep 09 2024
Cf. A193722, A128175. , A193823. (row sums).
reviewed
F. Chapoton: link for row sums