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”).

A237045 as a simple table

na(n)
00
10
20
34
412
536
6104
7260
8628
91448
103344
117464
1216564
1336180
1478480
15169232
16362732
17774172
181645508
193485788
207360208
2115503432
2232571360
2368289536
24142880552
25298417848
26622194236
271295266596
282692514348
295589496748
3011588789220
3123998902548

[0,0,0,4,12,36,104,260,628,1448,3344,7464,16564,
 36180,78480,169232,362732,774172,1645508,3485788,
 7360208,15503432,32571360,68289536,142880552,
 298417848,622194236,1295266596,2692514348,
 5589496748,11588789220,23998902548]