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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.

A275758 G.f. satisfies: A(x) = x + A( A(x)^4 - A(x)^10 ).

Table of values

n a(n)
1 1
2 1
3 4
4 21
5 126
6 817
7 5574
8 39418
9 286286
10 2122491
11 15995696
12 122166551
13 943430560
14 7353998931
15 57783603764
16 457176705018
17 3639000808140
18 29119701312548
19 234120338807316
20 1890257713736568
21 15319612051101438
22 124583720191974904
23 1016307862050772614
24 8314217332992596050
25 68193993494598345010
26 560671685990956975367
27 4619857060146629819160
28 38144728242794104501561
29 315546193363448088862064
30 2614910268303053285326541

List of values

[1, 1, 4, 21, 126, 817, 5574, 39418, 286286, 2122491, 15995696, 122166551, 943430560, 7353998931, 57783603764, 457176705018, 3639000808140, 29119701312548, 234120338807316, 1890257713736568, 15319612051101438, 124583720191974904, 1016307862050772614, 8314217332992596050, 68193993494598345010, 560671685990956975367, 4619857060146629819160, 38144728242794104501561, 315546193363448088862064, 2614910268303053285326541]

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

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