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.

A173547 Number of 3 X 3 semimagic squares with distinct positive values and magic sum n.

Table of values

n a(n)
15 72
16 144
17 288
18 576
19 864
20 1440
21 2088
22 3024
23 3888
24 5904
25 6984
26 9432
27 12168
28 14904
29 17928
30 23832
31 26784
32 33048
33 39672
34 46584
35 53640
36 65592
37 72504
38 85248
39 98928
40 111816
41 125208
42 147528
43 160632
44 182808
45 206424
46 229176
47 252648
48 287928
49 310752

List of values

[72, 144, 288, 576, 864, 1440, 2088, 3024, 3888, 5904, 6984, 9432, 12168, 14904, 17928, 23832, 26784, 33048, 39672, 46584, 53640, 65592, 72504, 85248, 98928, 111816, 125208, 147528, 160632, 182808, 206424, 229176, 252648, 287928, 310752]

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

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