The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A113225 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A113225

a(2n) = A011900(n), a(2n+1) = A001109(n+1).
(history; published version)

#34 by Michael De Vlieger at Fri Mar 15 21:27:56 EDT 2024

STATUS

reviewed

approved

#33 by Peter Luschny at Fri Mar 15 20:43:42 EDT 2024

STATUS

proposed

reviewed

#32 by Jon E. Schoenfield at Fri Mar 15 20:22:51 EDT 2024

STATUS

editing

proposed

#31 by Jon E. Schoenfield at Fri Mar 15 20:22:35 EDT 2024

FORMULA

a(n) = 2*a(n-1) + 2*a(n-2) - 2*a(n-3) + - a(n-4). - Eric W. Weisstein, Aug 01 2023

Discussion

Fri Mar 15

20:22

Jon E. Schoenfield: Right?

#30 by Jon E. Schoenfield at Fri Mar 15 20:20:05 EDT 2024

LINKS

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EdgeCoverNumber.html">Edge Cover Number</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EdgeCut.html">Edge Cut</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/IndependenceNumber.html">Independence Number</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/LovaszNumber">Lovasz Number</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PellGraph.html">Pell Graph</a>.

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ShannonCapacity.html">Shannon Capacity</a>.

STATUS

proposed

editing

#29 by Robert C. Lyons at Fri Mar 15 20:01:44 EDT 2024

STATUS

editing

proposed

#28 by Robert C. Lyons at Fri Mar 15 20:01:42 EDT 2024

COMMENTS

Floretion Algebra Multiplication Program, FAMP Code: -2jbasejseq[B*C], B = - .5'i + .5'j - .5i' + .5j' - 'kk' - .5'ik' - .5'jk' - .5'ki' - .5'kj'; C = + .5'i + .5i' + .5'ii' + .5e

PROG

Floretion Algebra Multiplication Program, FAMP Code: -2jbasejseq[B*C], B = - .5'i + .5'j - .5i' + .5j' - 'kk' - .5'ik' - .5'jk' - .5'ki' - .5'kj'; C = + .5'i + .5i' + .5'ii' + .5e

STATUS

approved

editing

#27 by Michael De Vlieger at Tue Aug 01 09:56:02 EDT 2023

STATUS

reviewed

approved

#26 by Michel Marcus at Tue Aug 01 09:40:06 EDT 2023

STATUS

proposed

reviewed

#25 by Eric W. Weisstein at Tue Aug 01 09:08:09 EDT 2023

STATUS

editing

proposed