A284646 - cp's OEIS frontend

A284646 Variation on Leyland numbers: k = x'^y + y'^x, where x' and y' are the arithmetic derivative of x and y.

n	a(n)
1	2
2	17
3	26
4	37
5	50
6	65
7	82
8	101
9	126
10	145
11	170
12	197
13	217
14	226
15	257
16	325
17	344
18	362
19	401
20	442
21	485
22	512
23	513
24	577
25	626
26	677
27	730
28	785
29	901
30	962
31	1001
32	1025
33	1090
34	1157
35	1297
36	1445
37	1522
38	1601
39	1682
40	1729
41	1765
42	1850
43	1937
44	2026
45	2117
46	2198
47	2305
48	2402
49	2501
50	2602

[2, 17, 26, 37, 50, 65, 82, 101, 126, 145, 170, 197, 217, 226, 257, 325, 344, 362, 401, 442, 485, 512, 513, 577, 626, 677, 730, 785, 901, 962, 1001, 1025, 1090, 1157, 1297, 1445, 1522, 1601, 1682, 1729, 1765, 1850, 1937, 2026, 2117, 2198, 2305, 2402, 2501, 2602]

cp's OEIS Frontend

A284646 Variation on Leyland numbers: k = x'^y + y'^x, where x' and y' are the arithmetic derivative of x and y.

Table of values

List of values