A103625 - cp's OEIS frontend

A103625 a(n) = 3 + 7a(n-2) + sqrt(1 + 48a(n-2) + 48*a(n-2)^2), with a(1) = 0, a(2) = 0, a(3) = 2.

n	a(n)
1	0
2	0
3	2
4	4
5	34
6	62
7	480
8	870
9	6692
10	12124
11	93214
12	168872
13	1298310
14	2352090
15	18083132
16	32760394
17	251865544
18	456293432
19	3508034490
20	6355347660
21	48860617322
22	88518573814
23	680540608024
24	1232904685742
25	9478707895020
26	17172147026580
27	132021369922262
28	239177153686384

[0, 0, 2, 4, 34, 62, 480, 870, 6692, 12124, 93214, 168872, 1298310, 2352090, 18083132, 32760394, 251865544, 456293432, 3508034490, 6355347660, 48860617322, 88518573814, 680540608024, 1232904685742, 9478707895020, 17172147026580, 132021369922262, 239177153686384]

cp's OEIS Frontend

A103625 a(n) = 3 + 7a(n-2) + sqrt(1 + 48a(n-2) + 48*a(n-2)^2), with a(1) = 0, a(2) = 0, a(3) = 2.

Table of values

List of values

cp's OEIS Frontend

A103625 a(n) = 3 + 7*a(n-2) + sqrt(1 + 48*a(n-2) + 48*a(n-2)^2), with a(1) = 0, a(2) = 0, a(3) = 2.

Table of values

List of values

A103625 a(n) = 3 + 7a(n-2) + sqrt(1 + 48a(n-2) + 48*a(n-2)^2), with a(1) = 0, a(2) = 0, a(3) = 2.