login

A253692 as a simple table

na(n)
140
276
3146
4304
5602
61182
72416
84772
99652
1019152
1138524
1276996
13154072
14308634
15617062
161236382
172472602
184951496
199907740
2019832536
2139695188
2279445558
23159023072
24318264564
25637042828
261275004742
272551980574
285107782140

[40,76,146,304,602,1182,2416,4772,9652,19152,
 38524,76996,154072,308634,617062,1236382,2472602,
 4951496,9907740,19832536,39695188,79445558,
 159023072,318264564,637042828,1275004742,
 2551980574,5107782140]