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A221526 as a simple table

n a(n)
1 0
2 10
3 274
4 2172
5 9982
6 33380
7 90684
8 212812
9 447962
10 867012
11 1569640
12 2691164
13 4410102
14 6956452
15 10620692
16 15763500
17 22826194
18 32341892
19 44947392
20 61395772
21 82569710
22 109495524
23 143357932
24 185515532
25 237517002
26 301118020
27 378298904

[0,10,274,2172,9982,33380,90684,212812,447962,
 867012,1569640,2691164,4410102,6956452,10620692,
 15763500,22826194,32341892,44947392,61395772,
 82569710,109495524,143357932,185515532,237517002,
 301118020,378298904]

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Last modified May 25 06:43 EDT 2022. Contains 354049 sequences. (Running on oeis4.)