A248434 - cp's OEIS frontend

A248434 Number of length three 0..n arrays with the sum of two elements equal to twice the third.

n	a(n)
1	2
2	9
3	16
4	29
5	42
6	61
7	80
8	105
9	130
10	161
11	192
12	229
13	266
14	309
15	352
16	401
17	450
18	505
19	560
20	621
21	682
22	749
23	816
24	889
25	962
26	1041
27	1120
28	1205
29	1290
30	1381
31	1472
32	1569
33	1666
34	1769
35	1872
36	1981
37	2090
38	2205
39	2320
40	2441
41	2562
42	2689
43	2816
44	2949
45	3082
46	3221
47	3360
48	3505
49	3650

[2, 9, 16, 29, 42, 61, 80, 105, 130, 161, 192, 229, 266, 309, 352, 401, 450, 505, 560, 621, 682, 749, 816, 889, 962, 1041, 1120, 1205, 1290, 1381, 1472, 1569, 1666, 1769, 1872, 1981, 2090, 2205, 2320, 2441, 2562, 2689, 2816, 2949, 3082, 3221, 3360, 3505, 3650]

cp's OEIS Frontend

A248434 Number of length three 0..n arrays with the sum of two elements equal to twice the third.

Table of values

List of values