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A223271 as a simple table

na(n)
136
2576
320992
4622592
519726336
6611319808
719084083200
8594316099584
918523120205824
10577157705236480
1117985124012392448
12560427673747193856
1317463446426942963712
14544175431737222889472
1516956974709073621549056

[36,576,20992,622592,19726336,611319808,
 19084083200,594316099584,18523120205824,
 577157705236480,17985124012392448,
 560427673747193856,17463446426942963712,
 544175431737222889472,16956974709073621549056]