A104139 -id:A104139 - cp's OEIS frontend

A155830 Decimal expansion of log_10 (23).

1, 3, 6, 1, 7, 2, 7, 8, 3, 6, 0, 1, 7, 5, 9, 2, 8, 7, 8, 8, 6, 7, 7, 7, 7, 1, 1, 2, 2, 5, 1, 1, 8, 9, 5, 4, 9, 6, 9, 7, 5, 1, 1, 0, 3, 4, 3, 3, 6, 0, 9, 6, 1, 8, 8, 2, 7, 5, 6, 0, 5, 4, 8, 6, 6, 1, 4, 6, 8, 8, 6, 3, 6, 3, 9, 6, 8, 0, 6, 4, 7, 2, 6, 7, 3, 5, 8, 4, 1, 9, 0, 8, 2, 7, 2, 1, 4, 8, 0

Offset: 1

N. J. A. Sloane, Oct 30 2009

			1.3617278360175928788677771122511895496975110343360961882756...

Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Index entries for transcendental numbers

Cf. decimal expansion of log_10(m): A007524 (m=2), A114490 (m=3), A114493 (m=4), A153268 (m=5), A153496 (m=6), A153620 (m=7), A153790 (m=8), A104139 (m=9), A154182 (m=11), A154203 (m=12), A154368 (m=13), A154478 (m=14), A154580 (m=15), A154794 (m=16), A154860 (m=17), A154953 (m=18), A155062 (m=19), A155522 (m=20), A155677 (m=21), A155746 (m=22), this sequence, A155979 (m=24).

RealDigits[Log[10, 23], 10, 100][[1]] (* Vincenzo Librandi, Sep 11 2013 *)

log(23)/log(10) \\ Charles R Greathouse IV, Aug 06 2020

A155979 Decimal expansion of log_10 (24).

Original entry on oeis.org

1, 3, 8, 0, 2, 1, 1, 2, 4, 1, 7, 1, 1, 6, 0, 6, 0, 2, 2, 9, 3, 6, 2, 4, 4, 5, 8, 7, 4, 2, 8, 5, 9, 4, 3, 8, 9, 5, 0, 4, 6, 9, 8, 5, 0, 8, 5, 7, 7, 0, 2, 1, 4, 8, 8, 7, 6, 1, 1, 4, 8, 0, 2, 3, 6, 8, 6, 5, 5, 3, 7, 2, 0, 6, 0, 6, 9, 3, 4, 6, 5, 1, 5, 0, 3, 7, 5, 0, 1, 1, 2, 0, 0, 2, 1, 7, 4, 8, 1

Offset: 1

N. J. A. Sloane, Oct 30 2009

			1.3802112417116060229362445874285943895046985085770214887611...

Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Index entries for transcendental numbers

Cf. decimal expansion of log_10(m): A007524 (m=2), A114490 (m=3), A114493 (m=4), A153268 (m=5), A153496 (m=6), A153620 (m=7), A153790 (m=8), A104139 (m=9), A154182 (m=11), A154203 (m=12), A154368 (m=13), A154478 (m=14), A154580 (m=15), A154794 (m=16), A154860 (m=17), A154953 (m=18), A155062 (m=19), A155522 (m=20), A155677 (m=21), A155746 (m=22), A155830 (m=23).

RealDigits[Log[10, 24], 10, 100][[1]] (* Vincenzo Librandi, Sep 11 2013 *)

log(24)/log(10) \\ Charles R Greathouse IV, Aug 06 2020

A043509 Numbers having exactly one 5 in base 10.

Original entry on oeis.org

5, 15, 25, 35, 45, 50, 51, 52, 53, 54, 56, 57, 58, 59, 65, 75, 85, 95, 105, 115, 125, 135, 145, 150, 151, 152, 153, 154, 156, 157, 158, 159, 165, 175, 185, 195, 205, 215, 225, 235, 245, 250, 251, 252, 253, 254, 256, 257, 258, 259

Offset: 1

Clark Kimberling

Enrique Pérez Herrero, Table of n, a(n) for n = 1..2000
Index entries for 10-automatic sequences.

Cf. A043489, A043493, A043497, A043501, A043505, A043513, A043517, A043521, A043525, A011535.

Select[Range[9000],DigitCount[#,10,5]==1&] (* Enrique Pérez Herrero, Nov 29 2013 *)

a(n) ≍ n^k log n, with k = log 9/log 10 = 0.9542425... = A104139. - Charles R Greathouse IV, Nov 01 2022

cp's OEIS Frontend

A155830 Decimal expansion of log_10 (23).

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A155979 Decimal expansion of log_10 (24).

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Mathematica

PARI

A043509 Numbers having exactly one 5 in base 10.

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