A226491 - cp's OEIS frontend

A226491 a(n) = n(21n-17)/2.

n	a(n)
0	0
1	2
2	25
3	69
4	134
5	220
6	327
7	455
8	604
9	774
10	965
11	1177
12	1410
13	1664
14	1939
15	2235
16	2552
17	2890
18	3249
19	3629
20	4030
21	4452
22	4895
23	5359
24	5844
25	6350
26	6877
27	7425
28	7994
29	8584
30	9195
31	9827
32	10480
33	11154
34	11849
35	12565
36	13302
37	14060
38	14839
39	15639
40	16460
41	17302
42	18165
43	19049
44	19954

[0, 2, 25, 69, 134, 220, 327, 455, 604, 774, 965, 1177, 1410, 1664, 1939, 2235, 2552, 2890, 3249, 3629, 4030, 4452, 4895, 5359, 5844, 6350, 6877, 7425, 7994, 8584, 9195, 9827, 10480, 11154, 11849, 12565, 13302, 14060, 14839, 15639, 16460, 17302, 18165, 19049, 19954]

cp's OEIS Frontend

A226491 a(n) = n(21n-17)/2.

Table of values

List of values

cp's OEIS Frontend

A226491 a(n) = n*(21*n-17)/2.

Table of values

List of values

A226491 a(n) = n(21n-17)/2.