A136475 - cp's OEIS frontend

A136475 Irregular triangle read by rows: row n gives prime factors of (2^(3^(n+1))+1)/(2^(3^n)+1).

n	a(n)
0	3
1	3
2	19
3	3
4	87211
5	3
6	163
7	135433
8	272010961
9	3
10	1459
11	139483
12	10429407431911334611
13	918125051602568899753
14	3
15	227862073
16	3110690934667
17	216892513252489863991753
18	1102099161075964924744009
19	393063301203384521164229656203691748263012766081190297429488962985651210769817

[3, 3, 19, 3, 87211, 3, 163, 135433, 272010961, 3, 1459, 139483, 10429407431911334611, 918125051602568899753, 3, 227862073, 3110690934667, 216892513252489863991753, 1102099161075964924744009, 393063301203384521164229656203691748263012766081190297429488962985651210769817]

cp's OEIS Frontend

A136475 Irregular triangle read by rows: row n gives prime factors of (2^(3^(n+1))+1)/(2^(3^n)+1).

Table of values

List of values