A109900 - cp's OEIS frontend

A109900 The (n,r)-th term of the following triangle is T(n)-T(r) for r = 0 to n. The n-th row contains n+1 terms. T(n) = the n-th triangular number = n(n+1)/2. Sequence contains the sum of terms at a 45-degree angle.

n	a(n)
0	0
1	1
2	3
3	8
4	15
5	27
6	42
7	64
8	90
9	125
10	165
11	216
12	273
13	343
14	420
15	512
16	612
17	729
18	855
19	1000
20	1155
21	1331
22	1518
23	1728
24	1950
25	2197
26	2457
27	2744
28	3045
29	3375
30	3720
31	4096
32	4488
33	4913
34	5355
35	5832
36	6327
37	6859
38	7410
39	8000
40	8610
41	9261
42	9933
43	10648
44	11385
45	12167
46	12972

[0, 1, 3, 8, 15, 27, 42, 64, 90, 125, 165, 216, 273, 343, 420, 512, 612, 729, 855, 1000, 1155, 1331, 1518, 1728, 1950, 2197, 2457, 2744, 3045, 3375, 3720, 4096, 4488, 4913, 5355, 5832, 6327, 6859, 7410, 8000, 8610, 9261, 9933, 10648, 11385, 12167, 12972]

cp's OEIS Frontend

A109900 The (n,r)-th term of the following triangle is T(n)-T(r) for r = 0 to n. The n-th row contains n+1 terms. T(n) = the n-th triangular number = n(n+1)/2. Sequence contains the sum of terms at a 45-degree angle.

Table of values

List of values