cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A110201 a(n) = sum of squares of numbers < 2^n having exactly [n/2]+1 ones in their binary expansion.

Table of values

n a(n)
1 1
2 9
3 70
4 535
5 3906
6 29274
7 215900
8 1628175
9 12197570
10 92830430
11 704127060
12 5400199350
13 41331491124
14 318871044756
15 2456608834680
16 19039140186495
17 147401590706370
18 1146463189301430
19 8909683732878500
20 69495629981713650

List of values

[1, 9, 70, 535, 3906, 29274, 215900, 1628175, 12197570, 92830430, 704127060, 5400199350, 41331491124, 318871044756, 2456608834680, 19039140186495, 147401590706370, 1146463189301430, 8909683732878500, 69495629981713650]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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