OFFSET
2,2
LINKS
Scott R. Shannon, Table of n, a(n) for n = 2..345. The terms for 2 to 55 points.
Scott R. Shannon, Illustration of regions for n = 5.
Scott R. Shannon, Illustration of regions for n = 6.
Scott R. Shannon, Illustration of regions for n = 10.
Scott R. Shannon, Illustration of regions for n = 11.
Scott R. Shannon, Illustration of regions for n = 15.
Scott R. Shannon, Illustration of regions for n = 16.
Scott R. Shannon, Illustration of regions for n = 20.
Scott R. Shannon, Illustration of regions for n = 21.
Scott R. Shannon, Illustration of regions for n = 25.
Scott R. Shannon, Illustration of regions for n = 26.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 10.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 11.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 15.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 16.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 20.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 21.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 25.
Scott R. Shannon, Illustration of regions with random distance-based coloring for n = 26.
EXAMPLE
The first 25 rows are:
1;
2,1;
3,4;
4,10,0,1;
5,19,3,3;
6,31,13,6;
7,46,35,10;
8,65,74,14;
9,92,131,18;
10,140,192,27,1;
11,202,274,46,3;
12,275,396,62,3;
13,363,563,79,9;
14,467,784,100,14;
15,598,1054,126,12,2;
16,772,1358,159,13,2;
17,996,1698,216,24,2,1;
18,1255,2120,266,41,2;
19,1551,2629,346,54,5;
20,1892,3236,425,71,8;
21,2304,3909,525,83,9,1;
22,2793,4676,629,108,9,2;
23,3342,5559,792,125,14,3;
24,3982,6546,948,166,15,2;
25,4705,7658,1145,198,14,3;
The row sums are A290865.
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Scott R. Shannon and N. J. A. Sloane, Feb 21 2020
STATUS
approved