A076461 - cp's OEIS frontend

A076461 Sum of squares of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly two ways.

n	a(n)
1	13
2	571
3	5306
4	26470
5	93455
6	264313
7	640276
8	1383276
9	2736465
10	5047735
11	8796238
12	14621906
13	23357971
14	36066485
15	54076840
16	79027288
17	112909461
18	158115891
19	217490530
20	294382270
21	392701463
22	516979441
23	672431036
24	865020100
25	1101528025
26	1389625263
27	1737945846
28	2156164906

[13, 571, 5306, 26470, 93455, 264313, 640276, 1383276, 2736465, 5047735, 8796238, 14621906, 23357971, 36066485, 54076840, 79027288, 112909461, 158115891, 217490530, 294382270, 392701463, 516979441, 672431036, 865020100, 1101528025, 1389625263, 1737945846, 2156164906]

cp's OEIS Frontend

A076461 Sum of squares of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly two ways.

Table of values

List of values

cp's OEIS Frontend

A076461 Sum of squares of numbers that can be written as t*n + u*(n+1) for nonnegative integers t,u in exactly two ways.

Table of values

List of values

A076461 Sum of squares of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly two ways.