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A194776 Number of lower triangles of an (n+10) X (n+10) 0..6 array with new values introduced in row major order 0..6 and no element unequal to more than one horizontal or vertical neighbor. 0
11862, 31466, 85007, 231395, 639325, 1782111, 5029741, 14321783, 41203606, 119499674, 349498634, 1029170664, 3050715488, 9092629968, 27237137985, 81930133845, 247359353107, 749090477957 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A194778.

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for 11 X 11 including a 6:

  0                      0                      0

  1 1                    1 1                    1 1

  1 1 2                  1 1 1                  1 1 1

  1 1 2 2                2 2 2 2                2 2 2 2

  1 1 2 2 3              2 2 2 2 3              2 2 2 2 2

  1 1 2 2 3 3            2 2 2 2 3 3            3 3 3 3 3 3

  1 1 2 2 3 3 4          2 2 2 2 3 3 4          3 3 3 3 3 3 4

  1 1 2 2 3 3 4 4        2 2 2 2 3 3 4 4        3 3 3 3 3 3 4 4

  1 1 2 2 3 3 4 4 5      2 2 2 2 3 3 4 4 5      3 3 3 3 3 3 4 4 5

  1 1 2 2 3 3 4 4 5 5    2 2 2 2 3 3 4 4 5 5    3 3 3 3 3 3 4 4 5 5

  1 1 2 2 3 3 4 4 5 5 6  2 2 2 2 3 3 4 4 5 5 6  3 3 3 3 3 3 4 4 5 5 6

CROSSREFS

Sequence in context: A185496 A249842 A251788 * A253988 A253995 A258905

Adjacent sequences:  A194773 A194774 A194775 * A194777 A194778 A194779

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 02 2011

STATUS

approved

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Last modified November 27 03:16 EST 2021. Contains 349345 sequences. (Running on oeis4.)