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”).

A098273 as a triangular array

1
12
2816
53096192
1411248014082816
42420224083202329646592
13215841008044800153600417792835584
4296006443522284809139202976768793804815876096
143022880192192112358451072001906688059924480157515776315031552

A098273 as a square array

112514421324291430
28301124201584600622880
169648022401008044352192192
19214088320448002284801123584
2816232961536009139205107200
46592417792297676819066880
835584793804859924480
15876096157515776
315031552
112514421324291430
28301124201584600622880
169648022401008044352192192
19214088320448002284801123584
2816232961536009139205107200
46592417792297676819066880
835584793804859924480
15876096157515776
315031552