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A101476
Sum[k=0..n, Sum[i>=0, C(2n,n-i(k+2))-C(2n,n+i(k+2)+k+1) ]].
1
1, 3, 14, 64, 287, 1265, 5500, 23660, 100931, 427669, 1802170, 7559473, 31586889, 131548937, 546297862, 2263042926, 9354234285, 38590884287, 158932839678, 653540335951, 2683657672278, 11006131763414, 45086288225520
OFFSET
0,2
CROSSREFS
Row sums of triangle A101475.
Sequence in context: A151238 A026243 A058139 * A060801 A292744 A151239
KEYWORD
nonn
AUTHOR
Ralf Stephan, Jan 21 2005
STATUS
approved