A076457 - cp's OEIS frontend

A076457 Sum of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly four ways.

n	a(n)
1	13
2	129
3	534
4	1510
5	3435
6	6783
7	12124
8	20124
9	31545
10	47245
11	68178
12	95394
13	130039
14	173355
15	226680
16	291448
17	369189
18	461529
19	570190
20	696990
21	843843
22	1012759
23	1205844
24	1425300
25	1673425
26	1952613
27	2265354
28	2614234
29	3001935
30	3431235
31	3905008
32	4426224
33	4997949
34	5623345

[13, 129, 534, 1510, 3435, 6783, 12124, 20124, 31545, 47245, 68178, 95394, 130039, 173355, 226680, 291448, 369189, 461529, 570190, 696990, 843843, 1012759, 1205844, 1425300, 1673425, 1952613, 2265354, 2614234, 3001935, 3431235, 3905008, 4426224, 4997949, 5623345]

cp's OEIS Frontend

A076457 Sum of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly four ways.

Table of values

List of values

cp's OEIS Frontend

A076457 Sum of numbers that can be written as t*n + u*(n+1) for nonnegative integers t,u in exactly four ways.

Table of values

List of values

A076457 Sum of numbers that can be written as tn + u(n+1) for nonnegative integers t,u in exactly four ways.