A169720 - cp's OEIS frontend

A169720 a(n) = (32^(n-1)-1)(3*2^n-1).

n	a(n)
0	1
1	10
2	55
3	253
4	1081
5	4465
6	18145
7	73153
8	293761
9	1177345
10	4713985
11	18865153
12	75479041
13	301953025
14	1207885825
15	4831690753
16	19327057921
17	77308821505
18	309236465665
19	1236948221953
20	4947797606401
21	19791199862785
22	79164818325505
23	316659311050753
24	1266637319700481

[1, 10, 55, 253, 1081, 4465, 18145, 73153, 293761, 1177345, 4713985, 18865153, 75479041, 301953025, 1207885825, 4831690753, 19327057921, 77308821505, 309236465665, 1236948221953, 4947797606401, 19791199862785, 79164818325505, 316659311050753, 1266637319700481]

cp's OEIS Frontend

A169720 a(n) = (32^(n-1)-1)(3*2^n-1).

Table of values

List of values

cp's OEIS Frontend

A169720 a(n) = (3*2^(n-1)-1)*(3*2^n-1).

Table of values

List of values

A169720 a(n) = (32^(n-1)-1)(3*2^n-1).