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.

A147590 Numbers whose binary representation is the concatenation of 2n-1 digits 1 and n-1 digits 0.

Table of values

n a(n)
1 1
2 14
3 124
4 1016
5 8176
6 65504
7 524224
8 4194176
9 33554176
10 268434944
11 2147482624
12 17179867136
13 137438949376
14 1099511619584
15 8796093005824
16 70368744144896
17 562949953355776
18 4503599627239424
19 36028797018701824
20 288230376151187456

List of values

[1, 14, 124, 1016, 8176, 65504, 524224, 4194176, 33554176, 268434944, 2147482624, 17179867136, 137438949376, 1099511619584, 8796093005824, 70368744144896, 562949953355776, 4503599627239424, 36028797018701824, 288230376151187456]

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

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