A143350 as tables, graphs or sounds

A143350 formatted as a triangular array:

2

4 -1

7 -1 -1

10 -2 -1 0

15 -2 -1 0 -1

18 -3 -2 0 -1 1

23 -3 -2 0 -1 1 -1

26 -4 -2 0 -1 1 -1 0

31 -4 -3 0 -1 1 -1 0 0

38 -5 -3 0 -2 1 -1 0 0 1

41 -5 -3 0 -2 1 -1 0 0 1 -1

48 -6 -4 0 -2 2 -1 0 0 1 -1 0

53 -6 -4 0 -2 2 -1 0 0 1 -1 0 -1

2 4 7 10 15 18 23 26 31 38 41 48 53

-1 -1 -2 -2 -3 -3 -4 -4 -5 -5 -6 -6

-1 -1 -1 -2 -2 -2 -3 -3 -3 -4 -4

0 0 0 0 0 0 0 0 0 0

-1 -1 -1 -1 -1 -2 -2 -2 -2

1 1 1 1 1 1 2 2

-1 -1 -1 -1 -1 -1 -1

0 0 0 0 0 0

0 0 0 0 0

1 1 1 1

-1 -1 -1

0 0

-1