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A171698 Square 'central binomial coefficients'-array read by antidiagonals 1
1, 1, 1, 2, 2, 2, 6, 6, 4, 4, 20, 20, 14, 8, 8, 70, 70, 50, 30, 16, 16, 252, 252, 182, 112, 62, 32, 32, 924, 924, 672, 420, 238, 126, 64, 64 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Antidiagonals sum up to A000984.

LINKS

Table of n, a(n) for n=1..36.

EXAMPLE

Example with 0's added:

0,1,1,2,4,8,..

0,1,2,4,8,16,..

0,2,6,14,30,..

Row 2 (binomial): 0+1=1,1+1=2,...

Row 3 (trinomial): 0+1+1=2,2+2+2=6,6+4+4=14...

CROSSREFS

Cf. A000984, A011782, A009766, A007318.

Sequence in context: A242010 A283673 A198472 * A080969 A214078 A155453

Adjacent sequences:  A171695 A171696 A171697 * A171699 A171700 A171701

KEYWORD

nonn,tabl

AUTHOR

Mark Dols, Dec 15 2009

STATUS

approved

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Last modified August 21 23:01 EDT 2019. Contains 326169 sequences. (Running on oeis4.)