The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A330848

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A330848

Table read by rows: T(n,k) = number of k-sided polygons in a cross with width 3 and height n (see Comments in A331455 for definition) for k = 3,4,5
(history; published version)

#28 by Michel Marcus at Sun May 31 05:49:30 EDT 2020

STATUS

reviewed

approved

#27 by Joerg Arndt at Sun May 31 05:48:11 EDT 2020

STATUS

proposed

reviewed

#26 by Lars Blomberg at Sun May 31 05:12:33 EDT 2020

STATUS

editing

proposed

#25 by Lars Blomberg at Sun May 31 05:09:29 EDT 2020

DATA

50, 14, 0, 84, 20, 0, 132, 42, 2, 188, 116, 0, 290, 202, 0, 428, 350, 0, 634, 542, 0, 890, 840, 2, 1290, 1156, 0, 1776, 1640, 0, 2392, 2220, 2, 3108, 3064, 0, 4112, 3946, 2, 5260, 5076, 4, 6696, 6350, 6, 8308, 8072, 8, 10334, 9886, 8, 12588, 12256, 8

LINKS

Lars Blomberg, <a href="/A330848/b330848.txt">Table of n, a(n) for n = 1..147</a> (the first 49 rows)

KEYWORD

nonn,more,tabf

EXTENSIONS

a(28) and beyond from Lars Blomberg, May 31 2020

STATUS

approved

editing

#24 by N. J. A. Sloane at Sun Mar 08 10:35:39 EDT 2020

STATUS

editing

approved

#23 by N. J. A. Sloane at Sun Mar 08 10:35:34 EDT 2020

KEYWORD

nonn,more,tabl,tabf,changed

#22 by Scott R. Shannon at Sun Mar 08 01:08:00 EST 2020

KEYWORD

nonn,more,tabf,tabl,changed

#21 by Scott R. Shannon at Sat Mar 07 05:20:47 EST 2020

CROSSREFS

Cf. A331455 (regions), A330850 (vertices), A330851 (edges), A333037 (cross with equal length arms).

#20 by Scott R. Shannon at Sat Mar 07 05:14:03 EST 2020

COMMENTS

See the links in A331455 for images of the crosses.

#19 by Scott R. Shannon at Sat Mar 07 05:09:42 EST 2020

CROSSREFS

Cf. A331455 (regions) , , A330850 (vertices), A333037 (cross with equal length arms).