A257840 - cp's OEIS frontend

A257840 y-value of the lexicographically first integer solution (x,y,z) of 4/n = 1/x + 1/y + 1/z with 0 < x < y < z, or 0 if there is no such solution. Corresponding x and z values are in A257839 and A257841.

n	a(n)
1	0
2	0
3	4
4	3
5	4
6	7
7	15
8	7
9	10
10	16
11	34
12	13
13	18
14	29
15	61
16	21
17	30
18	46
19	96
20	31
21	43
22	67
23	139
24	43
25	60
26	92
27	190
28	57
29	78
30	121
31	249
32	73
33	100
34	154
35	316
36	91
37	124
38	191
39	391
40	111
41	154
42	232
43	474
44	133
45	181
46	277
47	565
48	157
49	99
50	326
51	664
52	183
53	248
54	379
55	771
56	211
57	286
58	436
59	886
60	241
61	326
62	497
63	1009
64	273
65	370
66	562
67	1140
68	307
69	415
70	631
71	1279
72	343
73	210
74	704
75	1426
76	381
77	514
78	781
79	1581
80	421

[0, 0, 4, 3, 4, 7, 15, 7, 10, 16, 34, 13, 18, 29, 61, 21, 30, 46, 96, 31, 43, 67, 139, 43, 60, 92, 190, 57, 78, 121, 249, 73, 100, 154, 316, 91, 124, 191, 391, 111, 154, 232, 474, 133, 181, 277, 565, 157, 99, 326, 664, 183, 248, 379, 771, 211, 286, 436, 886, 241, 326, 497, 1009, 273, 370, 562, 1140, 307, 415, 631, 1279, 343, 210, 704, 1426, 381, 514, 781, 1581, 421]

cp's OEIS Frontend

A257840 y-value of the lexicographically first integer solution (x,y,z) of 4/n = 1/x + 1/y + 1/z with 0 < x < y < z, or 0 if there is no such solution. Corresponding x and z values are in A257839 and A257841.

Table of values

List of values