login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A305319 as a triangular array

1
1-1
1-1-1
1-311
1-2-411
1-4-161-1
1-3-8391-1
1-5-4155-11-11
1-4-13827-3-1411
1-6-82915-42-618-1-1
1-5-191760-19-63921-1-1
1-7-134935-110-29936-25-11
1-6-2631114-58-18945129-10-30-11

A305319 as a square array

1111111111111
-1-1-3-2-4-3-5-4-6-5-7-6
-11-4-1-8-4-13-8-19-13-26
116315829174931
119527156035114
-11-11-3-42-19-110-58
-1-1-14-6-63-29-189
111899345
1-1216129
-1-1-25-10
-1-1-30
1-1
1
1111111111111
-1-1-3-2-4-3-5-4-6-5-7-6
-11-4-1-8-4-13-8-19-13-26
116315829174931
119527156035114
-11-11-3-42-19-110-58
-1-1-14-6-63-29-189
111899345
1-1216129
-1-1-25-10
-1-1-30
1-1
1