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A220004 as a simple table

n a(n)
1 4
2 7
3 20
4 58
5 141
6 308
7 637
8 1271
9 2460
10 4624
11 8444
12 14989
13 25888
14 43557
15 71492
16 114640
17 179861
18 276495
19 417049
20 618020
21 900871
22 1293178
23 1829967
24 2555261
25 3523858
26 4803362
27 6476490
28 8643679
29 11426018
30 14968531
31 19443838
32 25056222

[4,7,20,58,141,308,637,1271,2460,4624,8444,14989,
 25888,43557,71492,114640,179861,276495,417049,
 618020,900871,1293178,1829967,2555261,3523858,
 4803362,6476490,8643679,11426018,14968531,
 19443838,25056222]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)