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A267961 as a simple table

na(n)
19
281
3576
43969
525281
6155236
7915849
85253264
929365561
10160731684
11863478225
124564353600
1323782266225
14122339052900
15622112365081
163130733894544
1715606442349001
1877125175024836
19378120197667969
201840241149473024

[9,81,576,3969,25281,155236,915849,5253264,
 29365561,160731684,863478225,4564353600,
 23782266225,122339052900,622112365081,
 3130733894544,15606442349001,77125175024836,
 378120197667969,1840241149473024]