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A015072 as a simple table

na(n)
01
11
265
3265793
469690957377
51169189032203853377
61255411354557002675473292865
786271175378590615960023796743819697729
8379424661671199524960693236715772257964919647837761

[1,1,65,265793,69690957377,1169189032203853377,
 1255411354557002675473292865,
 86271175378590615960023796743819697729,
 37942466167119952496069323671577225796491964783776\
 1]