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.

A027165 T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A027157.

Table of values

n a(n)
0 1
1 2
2 6
3 10
4 39
5 61
6 180
7 300
8 1157
9 1823
10 5502
11 9282
12 35911
13 57101
14 174312
15 296536
16 1147657
17 1837307
18 5643506
19 9657582
20 37349067
21 60103305
22 185313180
23 318533124
24 1230555661
25 1988344759
26 6145979174
27 10601082970
28 40907870479

List of values

[1, 2, 6, 10, 39, 61, 180, 300, 1157, 1823, 5502, 9282, 35911, 57101, 174312, 296536, 1147657, 1837307, 5643506, 9657582, 37349067, 60103305, 185313180, 318533124, 1230555661, 1988344759, 6145979174, 10601082970, 40907870479]

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

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