A073087

[David Wilson]

With regard to A073087:

I have proved to my own satisfaction that for n >= 4, A073087(n) = p#, where 
p is the smallest prime satisfying p#/phi(p#) >= n.  Supposing the floating 
point arithmetic at my disposal to be accurate, i get A073087 = 
(1#,3#,5#,7#,13#,23#,43#,79#,149#,257#,...) which is to say,

1 6 30 210 30030 223092870 13082761331670030 3217644767340672907899084554130
1492182350939279320058875736615841068547583863326864530410
16516447045902521732188973253623425320896207954043566485360902980990824644545340710198976591011245999110

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- David Wilson