A351684 Number of convex polydrafters with n cells. These are proper polydrafters, whose cells conform to the polyiamond grid. Mirror images are identified.

1, 4, 3, 7, 7, 13, 9, 15, 9, 14, 12, 27, 19, 29, 26, 29, 20, 36, 26, 48, 42, 46, 44, 53, 32, 54, 49, 69, 62, 82, 58, 72, 60, 67, 73, 119, 85, 106, 99, 93, 85, 126, 100, 152, 132, 142, 125, 145, 107, 142, 147, 185, 161, 194, 146, 169, 160, 186, 192, 271, 195, 251, 209, 199, 207, 260, 230, 330, 272, 275, 255, 293

Offset: 1

Author

George Sicherman, May 16 2022

Keywords

• nonn

Comments

These are conforming polydrafters as in A056842, as defined by Ed Pegg. They do not include extended polydrafters. See the Logelium link.

Examples

			For n=2 there are 6 proper didrafters.  Four are convex:  the rectangle, the kite, the moniamond (equilateral triangle), and the monopons (30°-30°-120° triangle). Thus a(2) = 4.
		

Links

• Bernd Karl Rennhak, Polydrafter, at Logelium.
• George Sicherman, Catalogue of Convex Polydrafters

Crossrefs

Cf. A056842, A217720, A289137.