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A133761 as a simple table

na(n)
15
27
311
4101
51481
63911
767421
867751
97592471
101922120561
113015551711
1219694875121
134397554721831
1429626637107421
1555746215858141
163544413963914171

[5,7,11,101,1481,3911,67421,67751,7592471,
 1922120561,3015551711,19694875121,4397554721831,
 29626637107421,55746215858141,3544413963914171]