A227972 - cp's OEIS frontend

A227972 Two column recursive array A(n,k), relating expressions based on half-squares (A007590) to each other and several other sequences, read by rows.

n	a(n)
1	1
2	0
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	7
11	7
12	10
13	17
14	24
15	29
16	41
17	41
18	58
19	99
20	140
21	169
22	239
23	239
24	338
25	577
26	816
27	985
28	1393
29	1393
30	1970
31	3363
32	4756
33	5741
34	8119
35	8119
36	11482
37	19601
38	27720
39	33461
40	47321
41	47321
42	66922
43	114243
44	161564
45	195025
46	275807
47	275807
48	390050
49	665857
50	941664
51	1136689
52	1607521

[1, 0, 1, 1, 1, 2, 3, 4, 5, 7, 7, 10, 17, 24, 29, 41, 41, 58, 99, 140, 169, 239, 239, 338, 577, 816, 985, 1393, 1393, 1970, 3363, 4756, 5741, 8119, 8119, 11482, 19601, 27720, 33461, 47321, 47321, 66922, 114243, 161564, 195025, 275807, 275807, 390050, 665857, 941664, 1136689, 1607521]

cp's OEIS Frontend

A227972 Two column recursive array A(n,k), relating expressions based on half-squares (A007590) to each other and several other sequences, read by rows.

Table of values

List of values