A072732 - OEIS

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A072732 as a triangular array

												0
											1		4
										7		12		2
									3		17		24		8
								11		31		40		18		5
							6		23		49		60		32		13
						16		39		71		84		50		25		9
					10		30		59		97		112		72		41		19
				22		48		83		127		144		98		61		33		14
			15		38		70		111		161		180		128		85		51		26
		29		58		96		143		199		220		162		113		73		42		20
	21		47

A072732 as a square array

0	1	7	3	11	6	16	10	22	15	29	21
4	12	17	31	23	39	30	48	38	58	47
2	24	40	49	71	59	83	70	96
8	18	60	84	97	127	111	143
5	32	50	112	144	161	199
13	25	72	98	180	220
9	41	61	128	162
19	33	85	113
14	51	73
26	42
20

A072732 as an upper right triangle

0	1	7	3	11	6	16	10	22	15	29	21
	4	12	17	31	23	39	30	48	38	58	47
		2	24	40	49	71	59	83	70	96
			8	18	60	84	97	127	111	143
				5	32	50	112	144	161	199
					13	25	72	98	180	220
						9	41	61	128	162
							19	33	85	113
								14	51	73
									26	42
										20