The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A141747 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A141747

a(n) is the number of nonnegative integer pairs i,j such that n = 2^i + 3^j.
(history; published version)

#14 by Alois P. Heinz at Fri Feb 11 07:44:28 EST 2022

STATUS

reviewed

approved

#13 by Joerg Arndt at Fri Feb 11 03:01:39 EST 2022

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proposed

reviewed

#12 by Ilya Gutkovskiy at Thu Feb 10 13:50:24 EST 2022

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editing

proposed

#11 by Ilya Gutkovskiy at Thu Feb 10 13:48:35 EST 2022

FORMULA

G.f.: ( Sum_{i>=0} x^(2^i) ) * ( Sum_{j>=0} x^(3^j) ). - Ilya Gutkovskiy, Feb 10 2022

STATUS

approved

editing

#10 by Michel Marcus at Tue Jun 09 03:41:42 EDT 2020

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reviewed

approved

#9 by Joerg Arndt at Tue Jun 09 02:08:42 EDT 2020

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proposed

reviewed

#8 by Michel Marcus at Tue Jun 09 00:45:23 EDT 2020

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editing

proposed

#7 by Michel Marcus at Tue Jun 09 00:45:20 EDT 2020

NAME

a(n) = is the number of nonnegative integer pairs i,j such that n = 2^i + 3^j.

STATUS

proposed

editing

#6 by G. C. Greubel at Tue Jun 09 00:17:22 EDT 2020

STATUS

editing

proposed

#5 by G. C. Greubel at Tue Jun 09 00:17:15 EDT 2020

CROSSREFS

Cf. A141748, A085634, A141748.

STATUS

proposed

editing