login

A198954 as a triangular array

1
30
500
7000
90000
1100000
13000000
150000000
1700000000
19000000000
210000000000
2300000000000
25000000000000
270000000

A198954 as a square array

13579111315171921232527
0000000000000
000000000000
00000000000
0000000000
000000000
00000000
0000000
00000
0000
000
00
0
13579111315171921232527
0000000000000
000000000000
00000000000
0000000000
000000000
00000000
0000000
00000
0000
000
00
0