A143593 - cp's OEIS frontend

A143593 Triangle read by rows, square of A238303 (an infinite lower triangular matrix with 1's in the first column and the rest 2's).

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

[1, 3, 4, 5, 8, 4, 7, 12, 8, 4, 9, 16, 12, 8, 4, 11, 20, 16, 12, 8, 4, 13, 24, 20, 16, 12, 8, 4, 15, 28, 24, 20, 16, 12, 8, 4, 17, 32, 28, 24, 20, 16, 12, 8, 4, 19, 36, 32, 28, 24, 20, 16, 12, 8, 4]

cp's OEIS Frontend

A143593 Triangle read by rows, square of A238303 (an infinite lower triangular matrix with 1's in the first column and the rest 2's).

Table of values

List of values

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

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

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