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A007255 as a simple table

n a(n)
-1 1
0 0
1 78
2 364
3 1365
4 4380
5 12520
6 32772
7 80094
8 185276
9 409578
10 871272
11 1792754
12 3582708
13 6977100
14 13277472
15 24747867
16 45267324
17 81389908
18 144048396
19 251265288
20 432425864
21 734953116
22 1234647216
23 2051576037

[1,0,78,364,1365,4380,12520,32772,80094,185276,
 409578,871272,1792754,3582708,6977100,13277472,
 24747867,45267324,81389908,144048396,251265288,
 432425864,734953116,1234647216,2051576037]

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)