The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A372010

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A372010

a(n) is the n-digit number k such that R(k)/k is maximal for any n-digit number.
(history; published version)

#37 by Peter Luschny at Tue Apr 23 16:28:49 EDT 2024

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reviewed

approved

#36 by Stefano Spezia at Tue Apr 23 16:19:48 EDT 2024

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proposed

reviewed

#35 by Paolo Xausa at Tue Apr 23 15:03:15 EDT 2024

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editing

proposed

#34 by Paolo Xausa at Tue Apr 23 14:58:36 EDT 2024

MATHEMATICA

Table[10^(n-1) + 10^Floor[n/2] - 1, {n, 25}] (* Paolo Xausa, Apr 23 2024 *)

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approved

editing

#33 by Michael De Vlieger at Tue Apr 16 19:21:14 EDT 2024

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reviewed

approved

#32 by Alois P. Heinz at Tue Apr 16 19:07:19 EDT 2024

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proposed

reviewed

#31 by Alois P. Heinz at Tue Apr 16 16:09:01 EDT 2024

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editing

proposed

#30 by Alois P. Heinz at Tue Apr 16 16:08:49 EDT 2024

CROSSREFS

Cf. A004086.

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proposed

editing

#29 by Stefano Spezia at Tue Apr 16 15:15:16 EDT 2024

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editing

proposed

#28 by Stefano Spezia at Tue Apr 16 15:10:51 EDT 2024

FORMULA

G.f.: x*(1 + 8*x - 100*x^2 + 10*x^3)/((1 - x)*(1 - 10*x)*(1 - 10*x^2)). - Stefano Spezia, Apr 16 2024

STATUS

approved

editing