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A071761
Dealing cards in a game of solitaire.
1
0, 1, 2, 21, 31, 32, 321, 421, 431, 432, 4321, 5321, 5421, 5431, 5432, 54321, 64321, 65321, 65421, 65431, 65432, 654321, 754321, 764321, 765321, 765421, 765431, 765432, 7654321, 8654321, 8754321, 8764321, 8765321, 8765421, 8765431, 8765432
OFFSET
0,3
COMMENTS
An infinite square array,
a11 a12 a13 ...
a21 a22 a23 ...
a31 a32 a33 ...
a41 a42 a43 ...
...............
is built up by antidiagonals: a11 a21 a12 a31 a22 a13 ... The terms of the sequence record the number of entries in each column at each step, e.g. when dealing cards in a game of solitaire.
CROSSREFS
The parity of this sequence gives A023532.
Sequence in context: A075715 A326735 A294377 * A101316 A006920 A355710
KEYWORD
nonn,easy,nice
AUTHOR
Allan C. Wechsler, Jun 07 2002
EXTENSIONS
Entry revised by Jeremy Gardiner, Dec 08, 2004
STATUS
approved