A093780 a(n) is the smallest prime used as initial value for Euclid-Mullin (EM) sequence (of variant A000945), such that in the corresponding EM-sequence the p=3 prime arises at the n-th position.

3, 2, 7, 5, 59, 479, 821, 1871, 17393, 43019, 284783, 1572149, 2737793, 32938853, 24254639

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Example

p=3 arises first as n-th term for n=1,2,3,4,...,9th as follows:
{3,2,7,43,13,53,5},{2,3,7,43,13,53,5},{7,2,3,43,13,53,5},
{5,2,11,3,331,19},{269,2,7,3767,3,42559567},{479,2,7,19,5,3},
{821,2,31,109,7,509,3},{1871,2,19,7,37,13,23,3},
{17393,2,43,37,7,4129,13,5,3},

Crossrefs

Cf. A000945, A051308-A051334, A056756, A093777-A093779.

Sequence in context: A155046 A236388 A033318 * A101307 A283997 A096899

Adjacent sequences: A093777 A093778 A093779 * A093781 A093782 A093783

Keyword

more,nonn

Author

Labos Elemer, May 03 2004

Extensions

More terms from David Wasserman, Apr 12 2007

Status

approved