A123402 as tables, graphs or sounds

A123402 formatted as a triangular array:

4

2 2

1 2 1

1 3 3 1

1 2 3 2 1

1 3 5 5 3 1

1 2 4 5 4 2 1

1 3 3 9 9 3 3 1

1 2 3 6 9 6 3 2 1

1 3 5 9 15 15 9 5 3 1

1 2 4 7 12 15 12 7 4 2 1

1 3 3 11 19 27 27 19 11 3 3 1

1 2 3 7 15 23 27 23 15 7 3 2 1

4 2 1 1 1 1 1 1 1 1 1 1 1

2 2 3 2 3 2 3 2 3 2 3 2

1 3 3 5 4 3 3 5 4 3 3

1 2 5 5 9 6 9 7 11 7

1 3 4 9 9 15 12 19 15

1 2 3 6 15 15 27 23

1 3 3 9 12 27 27

1 2 5 7 19 23

1 3 4 11 15

1 2 3 7

1 3 3

1 2

1