login

A298118 as a simple table

na(n)
11
21
31
42
53
66
711
821
940
1080
11159
12322
13657
141356
152816
165896
1712407
1826267
1955861
20119331
21255878
22550665
231188786
242574006
255588177
2612162141
2726529873
2857993624
29127020653
30278716336
31612617523
321348680531
332973564157
346565313455
3514514675376

[1,1,1,2,3,6,11,21,40,80,159,322,657,1356,2816,
 5896,12407,26267,55861,119331,255878,550665,
 1188786,2574006,5588177,12162141,26529873,
 57993624,127020653,278716336,612617523,1348680531,
 2973564157,6565313455,14514675376]