A274603 - cp's OEIS frontend

A274603 Numbers n such that 2n+1 and 3n+1 are both triangular numbers.

n	a(n)
1	45
2	4455
3	436590
4	42781410
5	4192141635
6	410787098865
7	40252943547180
8	3944377680524820
9	386508759747885225
10	37873914077612227275
11	3711257070846250387770
12	363665319028854925774230
13	35635490007756936475486815
14	3491914355441150919671933685

[45, 4455, 436590, 42781410, 4192141635, 410787098865, 40252943547180, 3944377680524820, 386508759747885225, 37873914077612227275, 3711257070846250387770, 363665319028854925774230, 35635490007756936475486815, 3491914355441150919671933685]

cp's OEIS Frontend

A274603 Numbers n such that 2n+1 and 3n+1 are both triangular numbers.

Table of values

List of values

cp's OEIS Frontend

A274603 Numbers n such that 2*n+1 and 3*n+1 are both triangular numbers.

Table of values

List of values

A274603 Numbers n such that 2n+1 and 3n+1 are both triangular numbers.