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A263583 as a simple table

na(n)
16
2134
33035
469084
51643235
638562523
7903637375
821206120278
9497781904012
1011682193577941
11274165517770655
126434456922985871
13151011586126096748
143544112130933243384
1583177316133805461631
161952101836234127241441

[6,134,3035,69084,1643235,38562523,903637375,
 21206120278,497781904012,11682193577941,
 274165517770655,6434456922985871,
 151011586126096748,3544112130933243384,
 83177316133805461631,1952101836234127241441]