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.

A278464 Total number of parts of the second sort in all partitions of n into two sorts of parts.

Table of values

n a(n)
0 0
1 1
2 5
3 17
4 53
5 145
6 385
7 957
8 2333
9 5493
10 12741
11 28941
12 65049
13 144225
14 317229
15 691457
16 1497901
17 3224145
18 6906969
19 14726701
20 31282421
21 66211253
22 139720445
23 294007373
24 617154865
25 1292516577
26 2701451621
27 5635565761
28 11736442005
29 24403092657
30 50666528209

List of values

[0, 1, 5, 17, 53, 145, 385, 957, 2333, 5493, 12741, 28941, 65049, 144225, 317229, 691457, 1497901, 3224145, 6906969, 14726701, 31282421, 66211253, 139720445, 294007373, 617154865, 1292516577, 2701451621, 5635565761, 11736442005, 24403092657, 50666528209]

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

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