A124290
Largest prime < 10*a(n-1), a(1)=11.
Original entry on oeis.org
11, 109, 1087, 10867, 108649, 1086469, 10864669, 108646667, 1086466657, 10864666531, 108646665307, 1086466653067, 10864666530661, 108646665306581, 1086466653065803, 10864666530658001, 108646665306579997, 1086466653065799961, 10864666530657999467, 108646665306579994669
Offset: 1
A124291
Largest prime < 10*a(n-1), a(1)=7.
Original entry on oeis.org
7, 67, 661, 6607, 66067, 660661, 6606581, 66065773, 660657713, 6606577129, 66065771269, 660657712667, 6606577126663, 66065771266577, 660657712665739, 6606577126657373, 66065771266573693, 660657712665736927, 6606577126657369171, 66065771266573691611, 660657712665736916107
Offset: 1
A124298
Largest prime < 10*a(n-1), a(1)=13.
Original entry on oeis.org
13, 127, 1259, 12589, 125887, 1258847, 12588461, 125884529, 1258845277, 12588452743, 125884527427, 1258845274261, 12588452742583, 125884527425827, 1258845274258259, 12588452742582559, 125884527425825569, 1258845274258255681, 12588452742582556787, 125884527425825567809
Offset: 1
A124299
Largest prime < 10*a(n-1), a(1)=17.
Original entry on oeis.org
17, 167, 1669, 16673, 166723, 1667227, 16672267, 166722667, 1667226667, 16672266659, 166722666527, 1667226665213, 16672266652081, 166722666520801, 1667226665207989, 16672266652079879, 166722666520798747, 1667226665207987467, 16672266652079874607, 166722666520798746053
Offset: 1
A124335
Largest prime < 10*a(n-1), a(1)=31.
Original entry on oeis.org
31, 307, 3067, 30661, 306589, 3065863, 30658619, 306586169, 3065861681, 30658616789, 306586167863, 3065861678629, 30658616786249, 306586167862427, 3065861678624219, 30658616786242157, 306586167862421549, 3065861678624215469, 30658616786242154603, 306586167862421546017
Offset: 1
A124336
Largest prime < 10*a(n-1), a(1)=23.
Original entry on oeis.org
23, 229, 2287, 22861, 228601, 2285981, 22859783, 228597829, 2285978263, 22859782619, 228597826159, 2285978261587, 22859782615849, 228597826158469, 2285978261584687, 22859782615846861, 228597826158468593, 2285978261584685869, 22859782615846858687, 228597826158468586843
Offset: 1
A124337
Largest prime < 10*a(n-1), a(1)=37.
Original entry on oeis.org
37, 367, 3659, 36587, 365851, 3658493, 36584923, 365849221, 3658492207, 36584922001, 365849219993, 3658492199881, 36584921998777, 365849219987749, 3658492199877481, 36584921998774777, 365849219987747737, 3658492199877477343, 36584921998774773359, 365849219987747733553
Offset: 1
A124338
Largest prime < 10*a(n-1), a(1)=41.
Original entry on oeis.org
41, 409, 4079, 40787, 407861, 4078609, 40786087, 407860853, 4078608529, 40786085251, 407860852417, 4078608524153, 40786085241529, 407860852415231, 4078608524152277, 40786085241522707, 407860852415227039, 4078608524152270349, 40786085241522703351, 407860852415227033453
Offset: 1
A124368
Largest prime < 1000000*a(n-1), a(1)=2.
Original entry on oeis.org
2, 1999993, 1999992999889, 1999992999888999961, 1999992999888999960999949, 1999992999888999960999948999991, 1999992999888999960999948999990999917, 1999992999888999960999948999990999916999963, 1999992999888999960999948999990999916999962999947
Offset: 1
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NestList[NextPrime[1000000#,-1]&,2,10] (* Harvey P. Dale, Jul 21 2021 *)
A124357
Largest prime < 100*a(n-1), a(1)=3.
Original entry on oeis.org
3, 293, 29297, 2929699, 292969877, 29296987651, 2929698765083, 292969876508291, 29296987650829069, 2929698765082906837, 292969876508290683679, 29296987650829068367867, 2929698765082906836786649, 292969876508290683678664841, 29296987650829068367866484043
Offset: 1