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A247946 as a simple table

n a(n)
1 7
2 13
3 181
4 349
5 673
6 1297
7 34513
8 90799453
9 175021573
10 4657290577
11 17304140641
12 1131469145856472270556751793
13 1544310310927991136025089626209
14 1442398599584422734286432395814518441223501
15 18598135820391234761502881488353916158281807617671450769

[7,13,181,349,673,1297,34513,90799453,175021573,
 4657290577,17304140641,
 1131469145856472270556751793,
 1544310310927991136025089626209,
 1442398599584422734286432395814518441223501,
 18598135820391234761502881488353916158281807617671\
 450769]

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Last modified January 19 06:37 EST 2020. Contains 331033 sequences. (Running on oeis4.)