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.

A255371 Number of strings of n decimal digits that contain at least one "0" digit that is not part of a string of two or more consecutive "0" digits.

Table of values

n a(n)
0 0
1 1
2 18
3 252
4 3177
5 37764
6 432315
7 4821867
8 52767711
9 569171142
10 6070198824
11 64154357361
12 673034324472
13 7017585817887
14 72795938474871
15 751858421307975
16 7736579039166894
17 79354228046171004
18 811679794900979769
19 8282239107946760700
20 84331460977774328115

List of values

[0, 1, 18, 252, 3177, 37764, 432315, 4821867, 52767711, 569171142, 6070198824, 64154357361, 673034324472, 7017585817887, 72795938474871, 751858421307975, 7736579039166894, 79354228046171004, 811679794900979769, 8282239107946760700, 84331460977774328115]

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

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