login

A178904 as a triangular array

1
-1-1
0-10
0110
0-11-10
01-1-110
0-12-32-10
01-344-310
0-13-68-63-10
01-39-13-139-310
0-14-1119-2319-114-10
01-513-273939-2713-510
0-15-1738-6171-6138-175-10

A178904 as a square array

1-100000000000
-1-11-11-11-11-11-1
011-12-33-34-55
0-1-1-34-69-1113-17
01248-1319-2738
0-1-3-6-13-2339-61
0139193971
0-1-3-11-27-61
0141338
0-1-5-17
015
0-1
0
1-100000000000
-1-11-11-11-11-11-1
011-12-33-34-55
0-1-1-34-69-1113-17
01248-1319-2738
0-1-3-6-13-2339-61
0139193971
0-1-3-11-27-61
0141338
0-1-5-17
015
0-1
0