A201003 - cp's OEIS frontend

A201003 Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5T(m) = 4T(k) for some k.

n	a(n)
0	0
1	36
2	11628
3	3744216
4	1205625960
5	388207814940
6	125001710784756
7	40250162664876528
8	12960427376379457296
9	4173217365031520372820
10	1343763031112773180590780
11	432687522800947932629858376
12	139324038578874121533633806328
13	44861907734874666185897455779276

[0, 36, 11628, 3744216, 1205625960, 388207814940, 125001710784756, 40250162664876528, 12960427376379457296, 4173217365031520372820, 1343763031112773180590780, 432687522800947932629858376, 139324038578874121533633806328, 44861907734874666185897455779276]

cp's OEIS Frontend

A201003 Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5T(m) = 4T(k) for some k.

Table of values

List of values

cp's OEIS Frontend

A201003 Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5*T(m) = 4*T(k) for some k.

Table of values

List of values

A201003 Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5T(m) = 4T(k) for some k.