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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.

A246956 Numbers a(n) = 2^(n-1) * f(n), where n >= 1 and f(n) is the smallest prime number larger than 2^n (A014210).

Table of values

n a(n)
1 3
2 10
3 44
4 136
5 592
6 2144
7 8384
8 32896
9 133376
10 527872
11 2102272
12 8394752
13 33624064
14 134438912
15 536920064
16 2147516416
17 8591835136
18 34360131584
19 137444458496
20 549759483904
21 2199041081344
22 8796124479488
23 35184409837568
24 140737849065472
25 562950540623872
26 2251800317001728
27 9007201200898048
28 36028797421617152
29 144115191028645888
30 576460753914036224
31 2305843021024854016
32 9223372069067030528

List of values

[3, 10, 44, 136, 592, 2144, 8384, 32896, 133376, 527872, 2102272, 8394752, 33624064, 134438912, 536920064, 2147516416, 8591835136, 34360131584, 137444458496, 549759483904, 2199041081344, 8796124479488, 35184409837568, 140737849065472, 562950540623872, 2251800317001728, 9007201200898048, 36028797421617152, 144115191028645888, 576460753914036224, 2305843021024854016, 9223372069067030528]

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

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