The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A001317 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A001317

Sierpiński's triangle (Pascal's triangle mod 2) converted to decimal.
(history; published version)

#302 by Charles R Greathouse IV at Sun Feb 16 08:32:23 EST 2025

LINKS

Eric Weisstein's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/Rule60.html">Rule 60</a> and <a href="httphttps://mathworld.wolfram.com/Rule102.html">Rule 102</a>.

Discussion

Sun Feb 16

08:32

OEIS Server: https://oeis.org/edit/global/3014

#301 by Russ Cox at Sun Jan 05 19:51:31 EST 2025

LINKS

Denton Hewgill, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/15-2/hewgill.pdf">A relationship between Pascal's triangle and Fermat numbers</a>, Fib. Quart., Vol. 15, No. 2 (1977), pp. 183-184.

Discussion

Sun Jan 05

19:51

OEIS Server: https://oeis.org/edit/global/3012

#300 by Russ Cox at Sun Jan 05 19:24:36 EST 2025

LINKS

Denton Hewgill, <a href="httphttps://www.fq.math.ca/Scanned/15-2/hewgill.pdf">A relationship between Pascal's triangle and Fermat numbers</a>, Fib. Quart., Vol. 15, No. 2 (1977), pp. 183-184.

Discussion

Sun Jan 05

19:24

OEIS Server: https://oeis.org/edit/global/3011

#299 by Michael De Vlieger at Tue Sep 03 12:15:32 EDT 2024

COMMENTS

Conjecture: a(n) = smallest k such that A000010(k) = 2^n (n>=0). - David James Sycamore, Sep 03 2024

CROSSREFS

Cf. A000010.

KEYWORD

nonn,base,easy,nice,hear,changed

STATUS

proposed

approved

#298 by David James Sycamore at Tue Sep 03 10:23:08 EDT 2024

STATUS

editing

proposed

Discussion

Tue Sep 03