A332019 - cp's OEIS frontend

A332019 The number of cells added in the n-th generation of the following procedure: start by coloring any triangle on the snub square tiling, then repeatedly color every cell that shares a vertex with a colored cell.

n	a(n)
1	1
2	9
3	21
4	35
5	48
6	60
7	72
8	84
9	96
10	108
11	120
12	132
13	144
14	156
15	168
16	180
17	192
18	204
19	216
20	228
21	240
22	252
23	264
24	276
25	288
26	300
27	312
28	324
29	336
30	348
31	360
32	372
33	384
34	396
35	408
36	420
37	432
38	444
39	456
40	468
41	480
42	492
43	504
44	516
45	528
46	540
47	552
48	564
49	576
50	588
51	600
52	612
53	624
54	636

[1, 9, 21, 35, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276, 288, 300, 312, 324, 336, 348, 360, 372, 384, 396, 408, 420, 432, 444, 456, 468, 480, 492, 504, 516, 528, 540, 552, 564, 576, 588, 600, 612, 624, 636]

cp's OEIS Frontend

A332019 The number of cells added in the n-th generation of the following procedure: start by coloring any triangle on the snub square tiling, then repeatedly color every cell that shares a vertex with a colored cell.

Table of values

List of values

n	a(n)
1	1
2	9
3	21
4	35
5	48
6	60
7	72
8	84
9	96
10	108
11	120
12	132
13	144
14	156
15	168
16	180
17	192
18	204
19	216
20	228
21	240
22	252
23	264
24	276
25	288
26	300
27	312
28	324
29	336
30	348
31	360
32	372
33	384
34	396
35	408
36	420
37	432
38	444
39	456
40	468
41	480
42	492
43	504
44	516
45	528
46	540
47	552
48	564
49	576
50	588
51	600
52	612
53	624
54	636

n	a(n)
1	1
2	9
3	21
4	35
5	48
6	60
7	72
8	84
9	96
10	108
11	120
12	132
13	144
14	156
15	168
16	180
17	192
18	204
19	216
20	228
21	240
22	252
23	264
24	276
25	288
26	300
27	312
28	324
29	336
30	348
31	360
32	372
33	384
34	396
35	408
36	420
37	432
38	444
39	456
40	468
41	480
42	492
43	504
44	516
45	528
46	540
47	552
48	564
49	576
50	588
51	600
52	612
53	624
54	636

n	a(n)
1	1
2	9
3	21
4	35
5	48
6	60
7	72
8	84
9	96
10	108
11	120
12	132
13	144
14	156
15	168
16	180
17	192
18	204
19	216
20	228
21	240
22	252
23	264
24	276
25	288
26	300
27	312
28	324
29	336
30	348
31	360
32	372
33	384
34	396
35	408
36	420
37	432
38	444
39	456
40	468
41	480
42	492
43	504
44	516
45	528
46	540
47	552
48	564
49	576
50	588
51	600
52	612
53	624
54	636