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”).

A188553 as a triangular array

2
33
454
5875
6121296
7172016117
823322820138
93049483624159
103872806444281710
11471021291128052321911
12571402011921449660362112
1368187303321256176

A188553 as a square array

2345678910111213
3581217233038475768
471220324972102140187
5916284880129201303
611203664112192321
713244480144256
815285296176
9173260
101936
1121
12
2345678910111213
3581217233038475768
471220324972102140187
5916284880129201303
611203664112192321
713244480144256
815285296176
9173260
101936
1121
12