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URL: https://oeis.org/history?seq=A034008

⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Showing entries 1-10 | older changes
a(n) = floor(2^|n-1|/2). Or: 1, 0, followed by powers of 2.
#68 by Michael De Vlieger at Mon Dec 08 08:58:28 EST 2025
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#67 by Joerg Arndt at Mon Dec 08 04:15:46 EST 2025
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#66 by Michel Marcus at Mon Dec 08 03:38:38 EST 2025
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#65 by Michel Marcus at Mon Dec 08 03:38:35 EST 2025
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#64 by R. J. Mathar at Tue Jan 28 12:32:28 EST 2020
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#63 by R. J. Mathar at Tue Jan 28 12:32:24 EST 2020
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#62 by Peter Luschny at Wed Oct 30 08:15:50 EDT 2019
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#61 by Joerg Arndt at Wed Oct 30 07:53:24 EDT 2019
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#60 by Jianing Song at Tue Oct 29 04:57:20 EDT 2019
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#59 by Alonso del Arte at Mon Oct 28 11:47:16 EDT 2019
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Discussion
Mon Oct 28
11:55
Alonso del Arte: That sequence, (3^n - 2n + 1)/2 for n in Z^+ U {0}, does not seem to be in the OEIS. Do you think it should be?
Tue Oct 29
04:57
Jianing Song: Paul Curtz has proposed it as A326493, and it was rejected because it was not of general interest (and I think so!). So my answer is "No".