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”).

A113278 as a triangular array

1
11
-121
3-331
-1512-641
105-7530-1051
-945630-22560-1561
10395-66152205-525105-2171
-13513583160-264605880-1050168-2881
2027025-1216215374220-7938013230-1890252-3691

A113278 as a square array

11-13-15105-94510395-1351352027025
12-312-75630-661583160-1216215
13-630-2252205-26460374220
14-1060-5255880-79380
15-15105-105013230
16-21168-1890
17-28252
18-36
19
1
11-13-15105-94510395-1351352027025
12-312-75630-661583160-1216215
13-630-2252205-26460374220
14-1060-5255880-79380
15-15105-105013230
16-21168-1890
17-28252
18-36
19
1