A169941 Triangle read by rows: A169940 with rows reversed.

1, 1, 1, 1, 0, 3, 1, 1, 3, 3, 1, 0, 6, 4, 5, 1, 1, 6, 10, 7, 7, 1, 0, 9, 6, 27, 8, 13, 1, 1, 9, 17, 23, 41, 21, 15, 1, 0, 12, 8, 56, 34, 98, 20, 27, 1, 1, 12, 22, 50, 104, 96, 148, 53, 25, 1, 0, 15, 10, 96, 66, 294, 116, 325, 56, 45, 1, 1, 15, 27, 86, 184, 262, 518, 319

Offset: 1

Author

N. J. A. Sloane, Aug 01 2010

Keywords

• nonn
• tabl

Examples

			Triangle begins:
[1]
[1, 1]
[1, 0, 3]
[1, 1, 3, 3]
[1, 0, 6, 4, 5]
[1, 1, 6, 10, 7, 7]
[1, 0, 9, 6, 27, 8, 13]
[1, 1, 9, 17, 23, 41, 21, 15]
[1, 0, 12, 8, 56, 34, 98, 20, 27]
[1, 1, 12, 22, 50, 104, 96, 148, 53, 25]
[1, 0, 15, 10, 96, 66, 294, 116, 325, 56, 45]
[1, 1, 15, 27, 86, 184, 262, 518, 319, 487, 89, 59]
[1, 0, 18, 12, 143, 112, 608, 346, 1279, 434, 942, 112, 89]
[1, 1, 18, 32, 131, 291, 528, 1166, 1153, 2181, 1042, 1348, 197, 103]
[1, 0, 21, 14, 199, 168, 1083, 720, 3313, 1568, 4981, 1320, 2613, 220, 163]
...
		

Links

• Index entries for sequences related to carryless arithmetic

Crossrefs

Related to thickness: A169940-A169954, A061909.

Formula

Wanted: a recurrence. Are any of A169940-A169954 related to any other entries in the OEIS?