A098701 - cp's OEIS frontend

A098701 Number of solutions to rev(x^2) = rev(x)^2 with n digits, where the rev(x) function reverses the digits of x.

n	a(n)
1	3
2	6
3	15
4	39
5	90
6	209
7	457
8	991
9	2062
10	4288
11	8521
12	17075
13	33108
14	64073
15	121045
16	228811
17	423188
18	781582
19	1420445
20	2571855
21	4599072
22	8187723
23	14426529
24	25278777
25	43966808
26	75959592
27	130496955
28	222598065
29	378036562
30	637128539
31	1071282807

[3, 6, 15, 39, 90, 209, 457, 991, 2062, 4288, 8521, 17075, 33108, 64073, 121045, 228811, 423188, 781582, 1420445, 2571855, 4599072, 8187723, 14426529, 25278777, 43966808, 75959592, 130496955, 222598065, 378036562, 637128539, 1071282807]

cp's OEIS Frontend

A098701 Number of solutions to rev(x^2) = rev(x)^2 with n digits, where the rev(x) function reverses the digits of x.

Table of values

List of values