login

A154681 as a triangular array

7
1015
132027
16253443
1930415263
223548617487
2540557085100115
2845627996113130147
31506988107126145164183
34557697118139160181202223
376083106129152

A154681 as a square array

710131619222528313437
15202530354045505560
273441485562697683
43526170798897106
63748596107118129
87100113126139152
115130145160
147164181
183202
223
710131619222528313437
15202530354045505560
273441485562697683
43526170798897106
63748596107118129
87100113126139152
115130145160
147164181
183202
223