A127723 - cp's OEIS frontend

A127723 Floor of square root of sum of squares of the first n consecutive even numbers.

n	a(n)
1	2
2	4
3	7
4	10
5	14
6	19
7	23
8	28
9	33
10	39
11	44
12	50
13	57
14	63
15	70
16	77
17	84
18	91
19	99
20	107
21	115
22	123
23	131
24	140
25	148
26	157
27	166
28	175
29	184
30	194
31	204
32	213
33	223
34	233
35	244
36	254
37	265
38	275
39	286
40	297
41	308
42	319
43	331
44	342
45	354
46	366
47	377
48	389
49	402
50	414
51	426
52	439
53	451
54	464
55	477
56	490
57	503

[2, 4, 7, 10, 14, 19, 23, 28, 33, 39, 44, 50, 57, 63, 70, 77, 84, 91, 99, 107, 115, 123, 131, 140, 148, 157, 166, 175, 184, 194, 204, 213, 223, 233, 244, 254, 265, 275, 286, 297, 308, 319, 331, 342, 354, 366, 377, 389, 402, 414, 426, 439, 451, 464, 477, 490, 503]

cp's OEIS Frontend

A127723 Floor of square root of sum of squares of the first n consecutive even numbers.

Table of values

List of values

n	a(n)
1	2
2	4
3	7
4	10
5	14
6	19
7	23
8	28
9	33
10	39
11	44
12	50
13	57
14	63
15	70
16	77
17	84
18	91
19	99
20	107
21	115
22	123
23	131
24	140
25	148
26	157
27	166
28	175
29	184
30	194
31	204
32	213
33	223
34	233
35	244
36	254
37	265
38	275
39	286
40	297
41	308
42	319
43	331
44	342
45	354
46	366
47	377
48	389
49	402
50	414
51	426
52	439
53	451
54	464
55	477
56	490
57	503

n	a(n)
1	2
2	4
3	7
4	10
5	14
6	19
7	23
8	28
9	33
10	39
11	44
12	50
13	57
14	63
15	70
16	77
17	84
18	91
19	99
20	107
21	115
22	123
23	131
24	140
25	148
26	157
27	166
28	175
29	184
30	194
31	204
32	213
33	223
34	233
35	244
36	254
37	265
38	275
39	286
40	297
41	308
42	319
43	331
44	342
45	354
46	366
47	377
48	389
49	402
50	414
51	426
52	439
53	451
54	464
55	477
56	490
57	503

n	a(n)
1	2
2	4
3	7
4	10
5	14
6	19
7	23
8	28
9	33
10	39
11	44
12	50
13	57
14	63
15	70
16	77
17	84
18	91
19	99
20	107
21	115
22	123
23	131
24	140
25	148
26	157
27	166
28	175
29	184
30	194
31	204
32	213
33	223
34	233
35	244
36	254
37	265
38	275
39	286
40	297
41	308
42	319
43	331
44	342
45	354
46	366
47	377
48	389
49	402
50	414
51	426
52	439
53	451
54	464
55	477
56	490
57	503