A282109 - cp's OEIS frontend

A282109 Numbers n with k digits in base x (MSD(n)=d_k, LSD(n)=d_1) such that, chosen one of their digits in position d_k < j < d_1, is Sum_{i=j+1..k}{(i-j)d_i} = Sum_{i=1..j-1}{(j-i)d_i}. Case x = 4.

n	a(n)
1	17
2	21
3	25
4	29
5	34
6	38
7	42
8	46
9	51
10	55
11	59
12	63
13	66
14	68
15	70
16	74
17	78
18	83
19	84
20	87
21	91
22	95
23	100
24	116
25	129
26	136
27	145
28	152
29	161
30	168
31	177
32	184
33	197
34	204
35	213
36	220
37	229
38	236
39	245
40	252
41	257
42	259
43	263
44	264
45	267
46	271
47	272
48	273
49	280
50	289
51	296
52	305
53	312
54	325
55	332
56	336
57	341

[17, 21, 25, 29, 34, 38, 42, 46, 51, 55, 59, 63, 66, 68, 70, 74, 78, 83, 84, 87, 91, 95, 100, 116, 129, 136, 145, 152, 161, 168, 177, 184, 197, 204, 213, 220, 229, 236, 245, 252, 257, 259, 263, 264, 267, 271, 272, 273, 280, 289, 296, 305, 312, 325, 332, 336, 341]

cp's OEIS Frontend

A282109 Numbers n with k digits in base x (MSD(n)=d_k, LSD(n)=d_1) such that, chosen one of their digits in position d_k < j < d_1, is Sum_{i=j+1..k}{(i-j)d_i} = Sum_{i=1..j-1}{(j-i)d_i}. Case x = 4.

Table of values

List of values

n	a(n)
1	17
2	21
3	25
4	29
5	34
6	38
7	42
8	46
9	51
10	55
11	59
12	63
13	66
14	68
15	70
16	74
17	78
18	83
19	84
20	87
21	91
22	95
23	100
24	116
25	129
26	136
27	145
28	152
29	161
30	168
31	177
32	184
33	197
34	204
35	213
36	220
37	229
38	236
39	245
40	252
41	257
42	259
43	263
44	264
45	267
46	271
47	272
48	273
49	280
50	289
51	296
52	305
53	312
54	325
55	332
56	336
57	341

n	a(n)
1	17
2	21
3	25
4	29
5	34
6	38
7	42
8	46
9	51
10	55
11	59
12	63
13	66
14	68
15	70
16	74
17	78
18	83
19	84
20	87
21	91
22	95
23	100
24	116
25	129
26	136
27	145
28	152
29	161
30	168
31	177
32	184
33	197
34	204
35	213
36	220
37	229
38	236
39	245
40	252
41	257
42	259
43	263
44	264
45	267
46	271
47	272
48	273
49	280
50	289
51	296
52	305
53	312
54	325
55	332
56	336
57	341

cp's OEIS Frontend

A282109 Numbers n with k digits in base x (MSD(n)=d_k, LSD(n)=d_1) such that, chosen one of their digits in position d_k < j < d_1, is Sum_{i=j+1..k}{(i-j)*d_i} = Sum_{i=1..j-1}{(j-i)*d_i}. Case x = 4.

Table of values

List of values

A282109 Numbers n with k digits in base x (MSD(n)=d_k, LSD(n)=d_1) such that, chosen one of their digits in position d_k < j < d_1, is Sum_{i=j+1..k}{(i-j)d_i} = Sum_{i=1..j-1}{(j-i)d_i}. Case x = 4.

n	a(n)
1	17
2	21
3	25
4	29
5	34
6	38
7	42
8	46
9	51
10	55
11	59
12	63
13	66
14	68
15	70
16	74
17	78
18	83
19	84
20	87
21	91
22	95
23	100
24	116
25	129
26	136
27	145
28	152
29	161
30	168
31	177
32	184
33	197
34	204
35	213
36	220
37	229
38	236
39	245
40	252
41	257
42	259
43	263
44	264
45	267
46	271
47	272
48	273
49	280
50	289
51	296
52	305
53	312
54	325
55	332
56	336
57	341