The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A063722

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Number of edges in the Platonic solids (in the order tetrahedron, cube, octahedron, dodecahedron, icosahedron).
(history; published version)

#7 by Alois P. Heinz at Wed Jun 26 11:50:07 EDT 2013

STATUS

proposed

approved

#6 by Michel Marcus at Wed Jun 26 11:47:10 EDT 2013

STATUS

editing

proposed

Discussion

Wed Jun 26

11:49

Alois P. Heinz: yes of course.

#5 by Michel Marcus at Wed Jun 26 11:45:37 EDT 2013

OFFSET

0,1,1

EXAMPLE

a(12) = 12 since a cube has twelve edges.

STATUS

approved

editing

Discussion

Wed Jun 26

11:46

Michel Marcus: I think offset 1 becuase of list.
Also to match offset in A053016.

11:47

Michel Marcus: If OK, will do A063723, too.

#4 by Russ Cox at Fri Mar 30 18:51:34 EDT 2012

AUTHOR

_Henry Bottomley (se16(AT)btinternet.com), _, Aug 14 2001

Discussion

Fri Mar 30

18:51

OEIS Server: https://oeis.org/edit/global/247

#3 by N. J. A. Sloane at Sat Jun 12 03:00:00 EDT 2004

LINKS

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PlatonicSolid.html">Platonic Solid</a>

KEYWORD

easy,fini,full,nonn,new

#2 by N. J. A. Sloane at Thu Feb 19 03:00:00 EST 2004

NAME

Number of edges in the Platonic solids (in the order tetrahedron, cube, octahedron, dodecahedron, icosohedronicosahedron).

KEYWORD

easy,fini,full,nonn,new

#1 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

Number of edges in the Platonic solids (in the order tetrahedron, cube, octahedron, dodecahedron, icosohedron).

DATA

6, 12, 12, 30, 30

OFFSET

0,1

FORMULA

a(n) = A053016(n)+A063723(n)-2.

EXAMPLE

a(1) = 12 since a cube has twelve edges.

CROSSREFS

Cf. A053012, A060296, A060852.

KEYWORD

easy,fini,full,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Aug 14 2001

STATUS

approved