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”).

A209324 as a triangular array

1
13
1917
14568142
11656807101569
185562908520941421576
1384347600134190131796151032355081
12181948171218389002372328241651228406486805296
111407550256082148829250609664489343685113166461247664148869153

A209324 as a square array

111111111
3945165855384321819114075
17686806290476004817125025608
1427108520134190183890021488292
15699414131796237232850609664
21576151032241651248934368
355081284064851131664
680529661247664
148869153
111111111
3945165855384321819114075
17686806290476004817125025608
1427108520134190183890021488292
15699414131796237232850609664
21576151032241651248934368
355081284064851131664
680529661247664
148869153