A084572 Let a(1)=1; for n>1, a(n)=nextprime((Pi/2)*a(n-1)).
1, 2, 5, 11, 19, 31, 53, 89, 149, 239, 379, 599, 941, 1481, 2333, 3671, 5779, 9091, 14281, 22433, 35251, 55373, 86981, 136649, 214651, 337189, 529657, 832003, 1306913, 2052899, 3224687, 5065351, 7956661, 12498313, 19632329, 30838393
Offset: 1
Keywords
Crossrefs
Cf. A084571.
Programs
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PARI
a(n)=if(n<2,1,nextprime((Pi/2)*a(n-1))); for(n=1,50,print1(a(n),","))