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Shirakawa's Box Packing Collection

The box packing collection by 白川俊博 (Toshihiro Shirakawa).

☞ Tiling and Packing results of Torsten Sillke

☞ Michael Reid's box collection

Pentomino

3D
4	2x2x5	1	prime minimal	1993	Sillke
26	2x5x13	1	prime	1993	Sillke
42	2x7x15	1+	composite	1993	Sillke
24	3x4x10	2	prime	1993	Sillke
36	3x4x15	2	prime	1993	Sillke
36	3x6x10	8	prime	1993	Sillke
54	3x6x15	1+	prime	1993	Sillke
42	3x7x10	1	prime	1993	Sillke
105	3x7x25	1+	prime	1993	Sillke
54	3x9x10	1+	prime	1993	Sillke
81	3x9x15	1+	prime	1993	Sillke
99	3x11x15	1+	prime	1993	Sillke
20	4x5x5	3	prime	1993	Sillke
30	5x5x6	3	prime	1993	Sillke
45	5x5x9	1+	prime	1993	Sillke
55	5x5x11	1+	prime	1993	Sillke
49	5x7x7	1+	prime	1993	Sillke
63	5x7x9	1+	prime	1993	Sillke

3D 2-sided
10	2x5x5	2	prime	1993	Sillke
24	3x5x8	86	prime	1993	Sillke
36	3x5x12	1+	prime	1993	Sillke

4D
18	2x3x3x5	1+	prime	1993	Sillke
27	3x3x3x5	1+	prime	1993	Sillke

Sillke says 2x7x15 is prime, but it is not prime: 2x5x13 + 2x2x5 *4.

Mar 23, 2015 by k16@chiba.email.ne.jp