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.

A066549 Let N = 235711171923293137..., the concatenation of the primes. a(n) is the n-digit number formed from the digits of N starting from the {n(n-1)/2 +1}th digit. Omit any leading zeros.

Table of values

n a(n)
1 2
2 35
3 711
4 1317
5 19232
6 931374
7 1434753
8 59616771
9 737983899
10 7101103107
11 10911312713
12 113713914915
13 1157163167173
14 17918119119319
15 719921122322722
16 9233239241251257
17 26326927127728128
18 329330731131331733

List of values

[2, 35, 711, 1317, 19232, 931374, 1434753, 59616771, 737983899, 7101103107, 10911312713, 113713914915, 1157163167173, 17918119119319, 719921122322722, 9233239241251257, 26326927127728128, 329330731131331733]