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A172887 as a simple table

n a(n)
1 1
2 135954
3 49244182264431
4 5312943290737316385142992
5 49886018232605740875666730594683213081
6 18430464510875205633785528020178855385292893289980336

[1,135954,49244182264431,
 5312943290737316385142992,
 49886018232605740875666730594683213081,
 18430464510875205633785528020178855385292893289980\
 336]

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Last modified February 6 10:02 EST 2023. Contains 360098 sequences. (Running on oeis4.)