A377181 - cp's OEIS frontend

A377181 Rectangular array, by antidiagonals: (row 1) = r(1) = A002808 (composite numbers); (row n) = r(n) = A002808(r(n-1)) for n>=1.

n	a(n)
1	4
2	6
3	9
4	8
5	12
6	16
7	9
8	15
9	21
10	26
11	10
12	16
13	25
14	33
15	39
16	12
17	18
18	26
19	38
20	49
21	56
22	14
23	21
24	28
25	39
26	55
27	69
28	78
29	15
30	24
31	33
32	42
33	56
34	77
35	94
36	106
37	16
38	25
39	36
40	49
41	60
42	78
43	105
44	125
45	141
46	18
47	26
48	38
49	52
50	69
51	84
52	106
53	140
54	164
55	184
56	20
57	28
58	39
59	55
60	74
61	94
62	115
63	141
64	183
65	212
66	236

[4, 6, 9, 8, 12, 16, 9, 15, 21, 26, 10, 16, 25, 33, 39, 12, 18, 26, 38, 49, 56, 14, 21, 28, 39, 55, 69, 78, 15, 24, 33, 42, 56, 77, 94, 106, 16, 25, 36, 49, 60, 78, 105, 125, 141, 18, 26, 38, 52, 69, 84, 106, 140, 164, 184, 20, 28, 39, 55, 74, 94, 115, 141, 183, 212, 236]

cp's OEIS Frontend

A377181 Rectangular array, by antidiagonals: (row 1) = r(1) = A002808 (composite numbers); (row n) = r(n) = A002808(r(n-1)) for n>=1.

Table of values

List of values

n	a(n)
1	4
2	6
3	9
4	8
5	12
6	16
7	9
8	15
9	21
10	26
11	10
12	16
13	25
14	33
15	39
16	12
17	18
18	26
19	38
20	49
21	56
22	14
23	21
24	28
25	39
26	55
27	69
28	78
29	15
30	24
31	33
32	42
33	56
34	77
35	94
36	106
37	16
38	25
39	36
40	49
41	60
42	78
43	105
44	125
45	141
46	18
47	26
48	38
49	52
50	69
51	84
52	106
53	140
54	164
55	184
56	20
57	28
58	39
59	55
60	74
61	94
62	115
63	141
64	183
65	212
66	236

n	a(n)
1	4
2	6
3	9
4	8
5	12
6	16
7	9
8	15
9	21
10	26
11	10
12	16
13	25
14	33
15	39
16	12
17	18
18	26
19	38
20	49
21	56
22	14
23	21
24	28
25	39
26	55
27	69
28	78
29	15
30	24
31	33
32	42
33	56
34	77
35	94
36	106
37	16
38	25
39	36
40	49
41	60
42	78
43	105
44	125
45	141
46	18
47	26
48	38
49	52
50	69
51	84
52	106
53	140
54	164
55	184
56	20
57	28
58	39
59	55
60	74
61	94
62	115
63	141
64	183
65	212
66	236

n	a(n)
1	4
2	6
3	9
4	8
5	12
6	16
7	9
8	15
9	21
10	26
11	10
12	16
13	25
14	33
15	39
16	12
17	18
18	26
19	38
20	49
21	56
22	14
23	21
24	28
25	39
26	55
27	69
28	78
29	15
30	24
31	33
32	42
33	56
34	77
35	94
36	106
37	16
38	25
39	36
40	49
41	60
42	78
43	105
44	125
45	141
46	18
47	26
48	38
49	52
50	69
51	84
52	106
53	140
54	164
55	184
56	20
57	28
58	39
59	55
60	74
61	94
62	115
63	141
64	183
65	212
66	236