A077221 - cp's OEIS frontend

A077221 a(0) = 0 and then alternately even and odd numbers in increasing order such that the sum of any two successive terms is a square.

n	a(n)
0	0
1	1
2	8
3	17
4	32
5	49
6	72
7	97
8	128
9	161
10	200
11	241
12	288
13	337
14	392
15	449
16	512
17	577
18	648
19	721
20	800
21	881
22	968
23	1057
24	1152
25	1249
26	1352
27	1457
28	1568
29	1681
30	1800
31	1921
32	2048
33	2177
34	2312
35	2449
36	2592
37	2737
38	2888
39	3041
40	3200
41	3361
42	3528
43	3697
44	3872
45	4049
46	4232

[0, 1, 8, 17, 32, 49, 72, 97, 128, 161, 200, 241, 288, 337, 392, 449, 512, 577, 648, 721, 800, 881, 968, 1057, 1152, 1249, 1352, 1457, 1568, 1681, 1800, 1921, 2048, 2177, 2312, 2449, 2592, 2737, 2888, 3041, 3200, 3361, 3528, 3697, 3872, 4049, 4232]

cp's OEIS Frontend

A077221 a(0) = 0 and then alternately even and odd numbers in increasing order such that the sum of any two successive terms is a square.

Table of values

List of values