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A068387
Prime coefficients in the Engel expansion of Pi = prime values in A006784(n).
0
17, 19, 1236467, 12670930520527, 238010096542661, 1556215151728015474002572174232146034933078744209044582588391660602774177237968073343
OFFSET
1,1
PROG
(PARI) /* 5000 significant digits */ s=asin(1)*2; for(i=0, 1000, s=s*ceil(1/s)-1; if(isprime(ceil(1/s))==1, print1(ceil(1/s), ", ")); );
CROSSREFS
Cf. A006784.
Sequence in context: A162873 A174379 A178424 * A372220 A134539 A196571
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Mar 03 2002
STATUS
approved