A051159 as tables, graphs or sounds

A051159 formatted as a triangular array:

1

1 1

1 0 1

1 1 1 1

1 0 2 0 1

1 1 2 2 1 1

1 0 3 0 3 0 1

1 1 3 3 3 3 1 1

1 0 4 0 6 0 4 0 1

1 1 4 4 6 6 4 4 1 1

1 0 5 0 10 0 10 0 5 0 1

1 1 5 5 10 10 10 10 5 5 1 1

1 0 6 0 15 0 20 0 15 0 6 0 1

1 1 1 1 1 1 1 1 1 1 1 1 1

1 0 1 0 1 0 1 0 1 0 1 0

1 1 2 2 3 3 4 4 5 5 6

1 0 2 0 3 0 4 0 5 0

1 1 3 3 6 6 10 10 15

1 0 3 0 6 0 10 0

1 1 4 4 10 10 20

1 0 4 0 10 0

1 1 5 5 15

1 0 5 0

1 1 6

1 0

1