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A193592
Triangle read by rows having n-th row 1, n, n-1, n-2,..., 2, 1 for n>=0.
3
1, 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 4, 3, 2, 1, 1, 5, 4, 3, 2, 1, 1, 6, 5, 4, 3, 2, 1, 1, 7, 6, 5, 4, 3, 2, 1, 1, 8, 7, 6, 5, 4, 3, 2, 1, 1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
OFFSET
0,5
COMMENTS
The triangle with its first column removed is A004736. - Hartmut F. W. Hoft, Jun 05 2017
EXAMPLE
Triangle begins:
1
1....1
1....2....1
1....3....2....1
1....4....3....2....1
MATHEMATICA
a193592[n_] := Map[Prepend[Range[#, 1, -1], 1]&, Range[0, n]]
Flatten[a193592[12] (* data *)
TableForm[a193592[4]] (* triangle *) (* Hartmut F. W. Hoft, Jun 05 2017 *)
CROSSREFS
Sequence in context: A025474 A136575 A309898 * A243714 A343656 A278427
KEYWORD
nonn,tabl
AUTHOR
Clark Kimberling, Jul 31 2011
EXTENSIONS
Corrected and added more terms by Hartmut F. W. Hoft, Jun 05 2017
STATUS
approved