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.

A376277 The least increasing sequence starting with 1, such that the determinants of the Hankel matrices H1 = [a(0), a(1), ..., a(n); ...; a(n), a(n+1), ..., a(2*n)] and H2 = [a(1), a(2), ..., a(n+1); ...; a(n+1), a(n+2), ..., a(2*n+1)] are > 0.

Table of values

n a(n)
0 1
1 2
2 5
3 13
4 35
5 98
6 287
7 883
8 2858
9 9708
10 34411
11 126337
12 476767
13 1836851
14 7185420
15 28420613
16 113317776
17 454468077
18 1830556209
19 7397188271
20 29965426959
21 121620119888
22 494365414071
23 2011965781648
24 8196475452837
25 33419092543257
26 136353532725534
27 556669705441210

List of values

[1, 2, 5, 13, 35, 98, 287, 883, 2858, 9708, 34411, 126337, 476767, 1836851, 7185420, 28420613, 113317776, 454468077, 1830556209, 7397188271, 29965426959, 121620119888, 494365414071, 2011965781648, 8196475452837, 33419092543257, 136353532725534, 556669705441210]