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A022166 as a triangular array

1
11
131
1771
11535151
131155155311
1636511395651631
11272667118111181126671271
1255107959715520078797155107952551
15114343578803533097473309747788035434355111

A022166 as a square array

1111111111
137153163127255511
173515565126671079543435
11515513951181197155788035
131651118112007873309747
1632667971553309747
112710795788035
125543435
1511
1

A022166 as an upper right triangle

1111111111
137153163127255511
173515565126671079543435
11515513951181197155788035
131651118112007873309747
1632667971553309747
112710795788035
125543435
1511
1

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Last modified December 9 06:30 EST 2016. Contains 278963 sequences.