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A121593 as a simple table

n a(n)
1 1
2 4
3 14
4 40
5 105
6 252
7 574
8 1236
9 2564
10 5124
11 9948
12 18788
13 34685
14 62664
15 111132
16 193672
17 332325
18 561996
19 937958
20 1546132
21 2519825
22 4062888
23 6486008
24 10257324
25 16079389
26 24996636
27 38555216
28 59025820
29 89728900
30 135486960
31 203274344

[1,4,14,40,105,252,574,1236,2564,5124,9948,18788,
 34685,62664,111132,193672,332325,561996,937958,
 1546132,2519825,4062888,6486008,10257324,16079389,
 24996636,38555216,59025820,89728900,135486960,
 203274344]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)