A214364 - cp's OEIS frontend

A214364 Irregular triangle read by rows n lists the values k of all decompositions of 2n into unordered sums of two k-almost primes.

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	2
17	3
18	2
19	1
20	1
21	2
22	1
23	2
24	1
25	3
26	2
27	1
28	1
29	1
30	1
31	1
32	2
33	2
34	1
35	2
36	1
37	2
38	1
39	3
40	1
41	1
42	2
43	3
44	1
45	2
46	2
47	1
48	2
49	1
50	3
51	1
52	2
53	1
54	2
55	2
56	3
57	1
58	4
59	1
60	1
61	2
62	1
63	1
64	1
65	1
66	3
67	2
68	1
69	2
70	2
71	1
72	3
73	2
74	1
75	3
76	3
77	1
78	1
79	2
80	1
81	3
82	2
83	2
84	4
85	1
86	3
87	2
88	1
89	2
90	1
91	3
92	1
93	2
94	1
95	2
96	1
97	2
98	2
99	1
100	2

[0, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 2, 3, 2, 1, 1, 2, 1, 2, 1, 3, 2, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 3, 1, 2, 2, 1, 2, 1, 3, 1, 2, 1, 2, 2, 3, 1, 4, 1, 1, 2, 1, 1, 1, 1, 3, 2, 1, 2, 2, 1, 3, 2, 1, 3, 3, 1, 1, 2, 1, 3, 2, 2, 4, 1, 3, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 2, 1, 2]

cp's OEIS Frontend

A214364 Irregular triangle read by rows n lists the values k of all decompositions of 2n into unordered sums of two k-almost primes.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	2
17	3
18	2
19	1
20	1
21	2
22	1
23	2
24	1
25	3
26	2
27	1
28	1
29	1
30	1
31	1
32	2
33	2
34	1
35	2
36	1
37	2
38	1
39	3
40	1
41	1
42	2
43	3
44	1
45	2
46	2
47	1
48	2
49	1
50	3
51	1
52	2
53	1
54	2
55	2
56	3
57	1
58	4
59	1
60	1
61	2
62	1
63	1
64	1
65	1
66	3
67	2
68	1
69	2
70	2
71	1
72	3
73	2
74	1
75	3
76	3
77	1
78	1
79	2
80	1
81	3
82	2
83	2
84	4
85	1
86	3
87	2
88	1
89	2
90	1
91	3
92	1
93	2
94	1
95	2
96	1
97	2
98	2
99	1
100	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	2
17	3
18	2
19	1
20	1
21	2
22	1
23	2
24	1
25	3
26	2
27	1
28	1
29	1
30	1
31	1
32	2
33	2
34	1
35	2
36	1
37	2
38	1
39	3
40	1
41	1
42	2
43	3
44	1
45	2
46	2
47	1
48	2
49	1
50	3
51	1
52	2
53	1
54	2
55	2
56	3
57	1
58	4
59	1
60	1
61	2
62	1
63	1
64	1
65	1
66	3
67	2
68	1
69	2
70	2
71	1
72	3
73	2
74	1
75	3
76	3
77	1
78	1
79	2
80	1
81	3
82	2
83	2
84	4
85	1
86	3
87	2
88	1
89	2
90	1
91	3
92	1
93	2
94	1
95	2
96	1
97	2
98	2
99	1
100	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	1
12	2
13	1
14	1
15	1
16	2
17	3
18	2
19	1
20	1
21	2
22	1
23	2
24	1
25	3
26	2
27	1
28	1
29	1
30	1
31	1
32	2
33	2
34	1
35	2
36	1
37	2
38	1
39	3
40	1
41	1
42	2
43	3
44	1
45	2
46	2
47	1
48	2
49	1
50	3
51	1
52	2
53	1
54	2
55	2
56	3
57	1
58	4
59	1
60	1
61	2
62	1
63	1
64	1
65	1
66	3
67	2
68	1
69	2
70	2
71	1
72	3
73	2
74	1
75	3
76	3
77	1
78	1
79	2
80	1
81	3
82	2
83	2
84	4
85	1
86	3
87	2
88	1
89	2
90	1
91	3
92	1
93	2
94	1
95	2
96	1
97	2
98	2
99	1
100	2