login

A252840 as a triangular array

1
11
10-3
1-1-35
1-2-28-7
1-3010-159
1-4310-2524-11
1-577-3549-3513
1-6120-4284-8448-15
1-718-12-42126-168132-6317

A252840 as a square array

1111111111
10-1-2-3-4-5-6-7
-3-3-20371218
58101070-12
-7-15-25-35-42-42
9244984126
-11-35-84-168
1348132
-15-63
17
1111111111
10-1-2-3-4-5-6-7
-3-3-20371218
58101070-12
-7-15-25-35-42-42
9244984126
-11-35-84-168
1348132
-15-63
17