A227786 - cp's OEIS frontend

A227786 Take squares larger than 1, subtract 3 from even squares and 2 from odd squares; a(n) = a(n-1) + A168276(n+1) (with a(1) = 1).

n	a(n)
1	1
2	7
3	13
4	23
5	33
6	47
7	61
8	79
9	97
10	119
11	141
12	167
13	193
14	223
15	253
16	287
17	321
18	359
19	397
20	439
21	481
22	527
23	573
24	623
25	673
26	727
27	781
28	839
29	897
30	959
31	1021
32	1087
33	1153
34	1223
35	1293
36	1367
37	1441
38	1519
39	1597
40	1679
41	1761
42	1847
43	1933
44	2023
45	2113
46	2207
47	2301
48	2399
49	2497
50	2599
51	2701

[1, 7, 13, 23, 33, 47, 61, 79, 97, 119, 141, 167, 193, 223, 253, 287, 321, 359, 397, 439, 481, 527, 573, 623, 673, 727, 781, 839, 897, 959, 1021, 1087, 1153, 1223, 1293, 1367, 1441, 1519, 1597, 1679, 1761, 1847, 1933, 2023, 2113, 2207, 2301, 2399, 2497, 2599, 2701]

cp's OEIS Frontend

A227786 Take squares larger than 1, subtract 3 from even squares and 2 from odd squares; a(n) = a(n-1) + A168276(n+1) (with a(1) = 1).

Table of values

List of values