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A265837 as a simple table

n a(n)
0 1
1 1
2 9
3 36
4 164
5 505
6 2474
7 7273
8 31008
9 103644
10 379890
11 1226802
12 4747529
13 14553648
14 52167558
15 171639695
16 583371802
17 1851395692
18 6427705062
19 19983302144
20 67235043192
21 214615427776
22 697704303005
23 2194982897304
24 7262755260410
25 22402942281766
26 72461661415093

[1,1,9,36,164,505,2474,7273,31008,103644,379890,
 1226802,4747529,14553648,52167558,171639695,
 583371802,1851395692,6427705062,19983302144,
 67235043192,214615427776,697704303005,
 2194982897304,7262755260410,22402942281766,
 72461661415093]

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Last modified June 16 16:09 EDT 2021. Contains 345063 sequences. (Running on oeis4.)