A272214 - cp's OEIS frontend

A272214 Square array read by antidiagonals upwards in which T(n,k) is the product of the n-th prime and the sum of the divisors of k, n >= 1, k >= 1.

n	a(n)
1	2
2	3
3	6
4	5
5	9
6	8
7	7
8	15
9	12
10	14
11	11
12	21
13	20
14	21
15	12
16	13
17	33
18	28
19	35
20	18
21	24
22	17
23	39
24	44
25	49
26	30
27	36
28	16
29	19
30	51
31	52
32	77
33	42
34	60
35	24
36	30
37	23
38	57
39	68
40	91
41	66
42	84
43	40
44	45
45	26
46	29
47	69
48	76
49	119
50	78
51	132
52	56
53	75
54	39
55	36
56	31
57	87
58	92
59	133
60	102
61	156
62	88
63	105
64	65
65	54
66	24
67	37
68	93
69	116
70	161
71	114
72	204
73	104
74	165
75	91
76	90
77	36
78	56

[2, 3, 6, 5, 9, 8, 7, 15, 12, 14, 11, 21, 20, 21, 12, 13, 33, 28, 35, 18, 24, 17, 39, 44, 49, 30, 36, 16, 19, 51, 52, 77, 42, 60, 24, 30, 23, 57, 68, 91, 66, 84, 40, 45, 26, 29, 69, 76, 119, 78, 132, 56, 75, 39, 36, 31, 87, 92, 133, 102, 156, 88, 105, 65, 54, 24, 37, 93, 116, 161, 114, 204, 104, 165, 91, 90, 36, 56]

cp's OEIS Frontend

A272214 Square array read by antidiagonals upwards in which T(n,k) is the product of the n-th prime and the sum of the divisors of k, n >= 1, k >= 1.

Table of values

List of values

n	a(n)
1	2
2	3
3	6
4	5
5	9
6	8
7	7
8	15
9	12
10	14
11	11
12	21
13	20
14	21
15	12
16	13
17	33
18	28
19	35
20	18
21	24
22	17
23	39
24	44
25	49
26	30
27	36
28	16
29	19
30	51
31	52
32	77
33	42
34	60
35	24
36	30
37	23
38	57
39	68
40	91
41	66
42	84
43	40
44	45
45	26
46	29
47	69
48	76
49	119
50	78
51	132
52	56
53	75
54	39
55	36
56	31
57	87
58	92
59	133
60	102
61	156
62	88
63	105
64	65
65	54
66	24
67	37
68	93
69	116
70	161
71	114
72	204
73	104
74	165
75	91
76	90
77	36
78	56

n	a(n)
1	2
2	3
3	6
4	5
5	9
6	8
7	7
8	15
9	12
10	14
11	11
12	21
13	20
14	21
15	12
16	13
17	33
18	28
19	35
20	18
21	24
22	17
23	39
24	44
25	49
26	30
27	36
28	16
29	19
30	51
31	52
32	77
33	42
34	60
35	24
36	30
37	23
38	57
39	68
40	91
41	66
42	84
43	40
44	45
45	26
46	29
47	69
48	76
49	119
50	78
51	132
52	56
53	75
54	39
55	36
56	31
57	87
58	92
59	133
60	102
61	156
62	88
63	105
64	65
65	54
66	24
67	37
68	93
69	116
70	161
71	114
72	204
73	104
74	165
75	91
76	90
77	36
78	56

n	a(n)
1	2
2	3
3	6
4	5
5	9
6	8
7	7
8	15
9	12
10	14
11	11
12	21
13	20
14	21
15	12
16	13
17	33
18	28
19	35
20	18
21	24
22	17
23	39
24	44
25	49
26	30
27	36
28	16
29	19
30	51
31	52
32	77
33	42
34	60
35	24
36	30
37	23
38	57
39	68
40	91
41	66
42	84
43	40
44	45
45	26
46	29
47	69
48	76
49	119
50	78
51	132
52	56
53	75
54	39
55	36
56	31
57	87
58	92
59	133
60	102
61	156
62	88
63	105
64	65
65	54
66	24
67	37
68	93
69	116
70	161
71	114
72	204
73	104
74	165
75	91
76	90
77	36
78	56