A308503 - cp's OEIS frontend

A308503 Square array T(n, k), n, k > 0, read by antidiagonals upwards: T(n, k) = f(g(n) | g(k)), where f is defined over the set of finite sequences of nonnegative integers with no trailing zero as f(e) = Sum_{k = 1..#e} prime(k)^e_k, g is the inverse of f, and | denotes concatenation.

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	3
7	4
8	15
9	10
10	4
11	5
12	12
13	21
14	18
15	5
16	6
17	35
18	20
19	75
20	14
21	6
22	7
23	30
24	55
25	36
26	33
27	30
28	7
29	8
30	77
31	42
32	245
33	28
34	105
35	22
36	8
37	9
38	24
39	91
40	150
41	65
42	60
43	39
44	54
45	9
46	10
47	45
48	40
49	847
50	66
51	385
52	44
53	375
54	50
55	10
56	11
57	70
58	63
59	72
60	119
61	210
62	85
63	108
64	147
65	42
66	11
67	12

[1, 2, 2, 3, 6, 3, 4, 15, 10, 4, 5, 12, 21, 18, 5, 6, 35, 20, 75, 14, 6, 7, 30, 55, 36, 33, 30, 7, 8, 77, 42, 245, 28, 105, 22, 8, 9, 24, 91, 150, 65, 60, 39, 54, 9, 10, 45, 40, 847, 66, 385, 44, 375, 50, 10, 11, 70, 63, 72, 119, 210, 85, 108, 147, 42, 11, 12]

cp's OEIS Frontend

A308503 Square array T(n, k), n, k > 0, read by antidiagonals upwards: T(n, k) = f(g(n) | g(k)), where f is defined over the set of finite sequences of nonnegative integers with no trailing zero as f(e) = Sum_{k = 1..#e} prime(k)^e_k, g is the inverse of f, and | denotes concatenation.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	3
7	4
8	15
9	10
10	4
11	5
12	12
13	21
14	18
15	5
16	6
17	35
18	20
19	75
20	14
21	6
22	7
23	30
24	55
25	36
26	33
27	30
28	7
29	8
30	77
31	42
32	245
33	28
34	105
35	22
36	8
37	9
38	24
39	91
40	150
41	65
42	60
43	39
44	54
45	9
46	10
47	45
48	40
49	847
50	66
51	385
52	44
53	375
54	50
55	10
56	11
57	70
58	63
59	72
60	119
61	210
62	85
63	108
64	147
65	42
66	11
67	12

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	3
7	4
8	15
9	10
10	4
11	5
12	12
13	21
14	18
15	5
16	6
17	35
18	20
19	75
20	14
21	6
22	7
23	30
24	55
25	36
26	33
27	30
28	7
29	8
30	77
31	42
32	245
33	28
34	105
35	22
36	8
37	9
38	24
39	91
40	150
41	65
42	60
43	39
44	54
45	9
46	10
47	45
48	40
49	847
50	66
51	385
52	44
53	375
54	50
55	10
56	11
57	70
58	63
59	72
60	119
61	210
62	85
63	108
64	147
65	42
66	11
67	12

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	3
7	4
8	15
9	10
10	4
11	5
12	12
13	21
14	18
15	5
16	6
17	35
18	20
19	75
20	14
21	6
22	7
23	30
24	55
25	36
26	33
27	30
28	7
29	8
30	77
31	42
32	245
33	28
34	105
35	22
36	8
37	9
38	24
39	91
40	150
41	65
42	60
43	39
44	54
45	9
46	10
47	45
48	40
49	847
50	66
51	385
52	44
53	375
54	50
55	10
56	11
57	70
58	63
59	72
60	119
61	210
62	85
63	108
64	147
65	42
66	11
67	12