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A169941 Triangle read by rows: A169940 with rows reversed. 0
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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..75.

Index entries for sequences related to carryless arithmetic

FORMULA

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

EXAMPLE

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]

...

CROSSREFS

Related to thickness: A169940-A169954, A061909.

Sequence in context: A184831 A033989 A307501 * A099545 A300867 A269301

Adjacent sequences:  A169938 A169939 A169940 * A169942 A169943 A169944

KEYWORD

nonn,tabl

AUTHOR

N. J. A. Sloane, Aug 01 2010

STATUS

approved

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Last modified July 9 18:08 EDT 2020. Contains 335545 sequences. (Running on oeis4.)