A226109 - cp's OEIS frontend

A226109 Triangular numbers t such that t - 4, t - 2, t + 2, t + 4 are four primes.

n	a(n)
1	15
2	105
3	1485
4	18915
5	666435
6	2143485
7	4174605
8	10059855
9	10440165
10	28196295
11	95295915
12	124591005
13	155064855
14	171023265
15	206258205
16	298400235
17	311737965
18	347701635
19	389470095
20	459332895
21	460424685
22	498948255
23	526517475
24	537575655
25	615496155
26	645500415
27	885763005
28	963144105

[15, 105, 1485, 18915, 666435, 2143485, 4174605, 10059855, 10440165, 28196295, 95295915, 124591005, 155064855, 171023265, 206258205, 298400235, 311737965, 347701635, 389470095, 459332895, 460424685, 498948255, 526517475, 537575655, 615496155, 645500415, 885763005, 963144105]

cp's OEIS Frontend

A226109 Triangular numbers t such that t - 4, t - 2, t + 2, t + 4 are four primes.

Table of values

List of values