A221139 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A221139 as a triangular array

									0
								1		1
							2		9		2
						4		49		49		4
					8		289		656		289		8
				16		1681		12544		12544		1681		16
			32		9801		200072		643204		200072		9801		32
		64		57121		3485689		31203396		31203396		3485689		57121		64
	128		332929		58132316		1539699121		4235650596		1539699121

A221139 as a square array

0	1	2	4	8	16	32	64	128
1	9	49	289	1681	9801	57121	332929
2	49	656	12544	200072	3485689	58132316
4	289	12544	643204	31203396	1539699121
8	1681	200072	31203396	4235650596
16	9801	3485689	1539699121
32	57121
64

A221139 as an upper right triangle

0	1	2	4	8	16	32	64	128
	1	9	49	289	1681	9801	57121	332929
		2	49	656	12544	200072	3485689	58132316
			4	289	12544	643204	31203396	1539699121
				8	1681	200072	31203396	4235650596
					16	9801	3485689	1539699121
						32	57121
							64