Powers of Two for Csound
exp	result		exp	result
1	2		21	2,097,152
2	4		22	4,194,304
3	8		23	8,388,608
4	16		24	16,777,216
5	32		25	33,554,432
6	64		26	67,108,864
7	128		27	134,217,728
8	256		28	268,435,456
9	512		29	536,870,912
10	1,024		30	1,073,741,824
11	2,048		31	2,147,483,648
12	4,096		32	4,294,967,296
13	8,192		33	8,589,934,592
14	16,384		34	17,179,869,184
15	32,768		35	34,359,738,368
16	65,536		36	68,719,476,736
17	131,072		37	137,438,953,472
18	262,144		38	274,877,906,944
19	524,288		39	549,755,813,888
20	1,048,576		40	1,099,511,627,776