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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.

A254369 a(n) = 15*2^n + 4^n + 5*3^n + 35.

Table of values

n a(n)
0 56
1 84
2 156
3 354
4 936
5 2754
6 8736
7 29274
8 102216
9 368274
10 1359216
11 5110794
12 19495896
13 75203394
14 292596096
15 1145977914
16 4511183976
17 17827536114
18 70660511376
19 280697078634
20 1116961278456
21 4450379734434
22 17749154257056
23 70839585900954
24 282887376051336
25 1130136853206354
26 4516309963145136
27 18052528510172874
28 72171982026734616

List of values

[56, 84, 156, 354, 936, 2754, 8736, 29274, 102216, 368274, 1359216, 5110794, 19495896, 75203394, 292596096, 1145977914, 4511183976, 17827536114, 70660511376, 280697078634, 1116961278456, 4450379734434, 17749154257056, 70839585900954, 282887376051336, 1130136853206354, 4516309963145136, 18052528510172874, 72171982026734616]

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

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