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.

A255372 Number of strings of n decimal digits that contain at least one string of exactly 2 consecutive "0" digits.

Table of values

n a(n)
0 0
1 0
2 1
3 18
4 261
5 3411
6 42057
7 499383
8 5775480
9 65506986
10 731953926
11 8082054387
12 88382960316
13 958831580700
14 10332164902851
15 110698940875149
16 1180155371168034
17 12527193711780981
18 132468636134059128
19 1396061253467955315
20 14668489189614036627

List of values

[0, 0, 1, 18, 261, 3411, 42057, 499383, 5775480, 65506986, 731953926, 8082054387, 88382960316, 958831580700, 10332164902851, 110698940875149, 1180155371168034, 12527193711780981, 132468636134059128, 1396061253467955315, 14668489189614036627]