A227876 - cp's OEIS frontend

A227876 Write the decimal digits of n and take successive absolute differences; sequence is the sum of all digits at each level of the pyramid.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	2
11	2
12	4
13	6
14	8
15	10
16	12
17	14
18	16
19	18
20	4
21	4
22	4
23	6
24	8
25	10
26	12
27	14
28	16
29	18
30	6
31	6
32	6
33	6
34	8
35	10
36	12
37	14
38	16
39	18
40	8
41	8
42	8
43	8
44	8
45	10
46	12
47	14
48	16
49	18
50	10
51	10
52	10
53	10
54	10
55	10
56	12
57	14
58	16
59	18
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	14
68	16
69	18
70	14
71	14
72	14
73	14
74	14
75	14
76	14
77	14
78	16
79	18
80	16
81	16
82	16
83	16
84	16
85	16
86	16
87	16
88	16
89	18
90	18
91	18
92	18
93	18
94	18
95	18
96	18
97	18
98	18
99	18
100	3
101	4
102	7
103	10
104	13
105	16
106	19
107	22
108	25
109	28
110	4
111	3
112	6
113	9
114	12
115	15
116	18
117	21
118	24
119	27
120	7
121	6
122	7
123	8
124	11
125	14
126	17
127	20
128	23
129	26

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 4, 6, 8, 10, 12, 14, 16, 18, 4, 4, 4, 6, 8, 10, 12, 14, 16, 18, 6, 6, 6, 6, 8, 10, 12, 14, 16, 18, 8, 8, 8, 8, 8, 10, 12, 14, 16, 18, 10, 10, 10, 10, 10, 10, 12, 14, 16, 18, 12, 12, 12, 12, 12, 12, 12, 14, 16, 18, 14, 14, 14, 14, 14, 14, 14, 14, 16, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 4, 7, 10, 13, 16, 19, 22, 25, 28, 4, 3, 6, 9, 12, 15, 18, 21, 24, 27, 7, 6, 7, 8, 11, 14, 17, 20, 23, 26]

cp's OEIS Frontend

A227876 Write the decimal digits of n and take successive absolute differences; sequence is the sum of all digits at each level of the pyramid.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	2
11	2
12	4
13	6
14	8
15	10
16	12
17	14
18	16
19	18
20	4
21	4
22	4
23	6
24	8
25	10
26	12
27	14
28	16
29	18
30	6
31	6
32	6
33	6
34	8
35	10
36	12
37	14
38	16
39	18
40	8
41	8
42	8
43	8
44	8
45	10
46	12
47	14
48	16
49	18
50	10
51	10
52	10
53	10
54	10
55	10
56	12
57	14
58	16
59	18
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	14
68	16
69	18
70	14
71	14
72	14
73	14
74	14
75	14
76	14
77	14
78	16
79	18
80	16
81	16
82	16
83	16
84	16
85	16
86	16
87	16
88	16
89	18
90	18
91	18
92	18
93	18
94	18
95	18
96	18
97	18
98	18
99	18
100	3
101	4
102	7
103	10
104	13
105	16
106	19
107	22
108	25
109	28
110	4
111	3
112	6
113	9
114	12
115	15
116	18
117	21
118	24
119	27
120	7
121	6
122	7
123	8
124	11
125	14
126	17
127	20
128	23
129	26

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	2
11	2
12	4
13	6
14	8
15	10
16	12
17	14
18	16
19	18
20	4
21	4
22	4
23	6
24	8
25	10
26	12
27	14
28	16
29	18
30	6
31	6
32	6
33	6
34	8
35	10
36	12
37	14
38	16
39	18
40	8
41	8
42	8
43	8
44	8
45	10
46	12
47	14
48	16
49	18
50	10
51	10
52	10
53	10
54	10
55	10
56	12
57	14
58	16
59	18
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	14
68	16
69	18
70	14
71	14
72	14
73	14
74	14
75	14
76	14
77	14
78	16
79	18
80	16
81	16
82	16
83	16
84	16
85	16
86	16
87	16
88	16
89	18
90	18
91	18
92	18
93	18
94	18
95	18
96	18
97	18
98	18
99	18
100	3
101	4
102	7
103	10
104	13
105	16
106	19
107	22
108	25
109	28
110	4
111	3
112	6
113	9
114	12
115	15
116	18
117	21
118	24
119	27
120	7
121	6
122	7
123	8
124	11
125	14
126	17
127	20
128	23
129	26

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	2
11	2
12	4
13	6
14	8
15	10
16	12
17	14
18	16
19	18
20	4
21	4
22	4
23	6
24	8
25	10
26	12
27	14
28	16
29	18
30	6
31	6
32	6
33	6
34	8
35	10
36	12
37	14
38	16
39	18
40	8
41	8
42	8
43	8
44	8
45	10
46	12
47	14
48	16
49	18
50	10
51	10
52	10
53	10
54	10
55	10
56	12
57	14
58	16
59	18
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	14
68	16
69	18
70	14
71	14
72	14
73	14
74	14
75	14
76	14
77	14
78	16
79	18
80	16
81	16
82	16
83	16
84	16
85	16
86	16
87	16
88	16
89	18
90	18
91	18
92	18
93	18
94	18
95	18
96	18
97	18
98	18
99	18
100	3
101	4
102	7
103	10
104	13
105	16
106	19
107	22
108	25
109	28
110	4
111	3
112	6
113	9
114	12
115	15
116	18
117	21
118	24
119	27
120	7
121	6
122	7
123	8
124	11
125	14
126	17
127	20
128	23
129	26