A261357 - cp's OEIS frontend

A261357 Pyramid of coefficients in expansion of (1 + 2x + 2y)^n.

n	a(n)
0	1
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	1
11	6
12	6
13	12
14	24
15	12
16	8
17	24
18	24
19	8
20	1
21	8
22	8
23	24
24	48
25	24
26	32
27	96
28	96
29	32
30	16
31	64
32	96
33	64
34	16
35	1
36	10
37	10
38	40
39	80
40	40
41	80
42	240
43	240
44	80
45	80
46	320
47	480
48	320
49	80
50	32
51	160
52	320
53	320
54	160
55	32

[1, 1, 2, 2, 1, 4, 4, 4, 8, 4, 1, 6, 6, 12, 24, 12, 8, 24, 24, 8, 1, 8, 8, 24, 48, 24, 32, 96, 96, 32, 16, 64, 96, 64, 16, 1, 10, 10, 40, 80, 40, 80, 240, 240, 80, 80, 320, 480, 320, 80, 32, 160, 320, 320, 160, 32]

cp's OEIS Frontend

A261357 Pyramid of coefficients in expansion of (1 + 2x + 2y)^n.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	1
11	6
12	6
13	12
14	24
15	12
16	8
17	24
18	24
19	8
20	1
21	8
22	8
23	24
24	48
25	24
26	32
27	96
28	96
29	32
30	16
31	64
32	96
33	64
34	16
35	1
36	10
37	10
38	40
39	80
40	40
41	80
42	240
43	240
44	80
45	80
46	320
47	480
48	320
49	80
50	32
51	160
52	320
53	320
54	160
55	32

n	a(n)
0	1
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	1
11	6
12	6
13	12
14	24
15	12
16	8
17	24
18	24
19	8
20	1
21	8
22	8
23	24
24	48
25	24
26	32
27	96
28	96
29	32
30	16
31	64
32	96
33	64
34	16
35	1
36	10
37	10
38	40
39	80
40	40
41	80
42	240
43	240
44	80
45	80
46	320
47	480
48	320
49	80
50	32
51	160
52	320
53	320
54	160
55	32

cp's OEIS Frontend

A261357 Pyramid of coefficients in expansion of (1 + 2*x + 2*y)^n.

Table of values

List of values

A261357 Pyramid of coefficients in expansion of (1 + 2x + 2y)^n.

n	a(n)
0	1
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	1
11	6
12	6
13	12
14	24
15	12
16	8
17	24
18	24
19	8
20	1
21	8
22	8
23	24
24	48
25	24
26	32
27	96
28	96
29	32
30	16
31	64
32	96
33	64
34	16
35	1
36	10
37	10
38	40
39	80
40	40
41	80
42	240
43	240
44	80
45	80
46	320
47	480
48	320
49	80
50	32
51	160
52	320
53	320
54	160
55	32