A141499 - cp's OEIS frontend

A141499 a(0)=0; a(1)=1; a(n) = triangular number at index 5*2^(n-2)-1.

n	a(n)
0	0
1	1
2	10
3	45
4	190
5	780
6	3160
7	12720
8	51040
9	204480
10	818560
11	3275520
12	13104640
13	52423680
14	209704960
15	838840320
16	3355402240
17	13421690880
18	53686927360
19	214748037120
20	858992803840
21	3435972526080
22	13743892725760
23	54975576145920
24	219902315069440
25	879609281249280

[0, 1, 10, 45, 190, 780, 3160, 12720, 51040, 204480, 818560, 3275520, 13104640, 52423680, 209704960, 838840320, 3355402240, 13421690880, 53686927360, 214748037120, 858992803840, 3435972526080, 13743892725760, 54975576145920, 219902315069440, 879609281249280]

cp's OEIS Frontend

A141499 a(0)=0; a(1)=1; a(n) = triangular number at index 5*2^(n-2)-1.

Table of values

List of values