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”).

A330613 as a triangular array

1
52
1383
2518114
413223145
61503928176
8572594633207
1139883685338238
14512811194776043269
1811621431241058667482910
2212001791581371169574533211

A330613 as a square array

151325416185113145181221
281832507298128162200
31123395983111143179
41428466894124158
517335377105137
620386086116
723436795
8264874
92953
1032
11
151325416185113145181221
281832507298128162200
31123395983111143179
41428466894124158
517335377105137
620386086116
723436795
8264874
92953
1032
11