A052117 Number of nonnegative integer pairs (i,j) with binomial(i+r,r) + binomial(j+r,r) <= binomial(n+r,r), r=4.

0, 1, 4, 9, 16, 24, 35, 46, 61, 78, 95, 115, 136, 161, 184, 213, 240, 272, 305, 340, 375, 414, 455, 497, 540, 587, 632, 685, 734, 788, 841, 900, 959, 1018, 1083, 1144, 1214, 1281, 1352, 1423, 1496, 1573, 1647, 1730, 1807, 1890, 1975, 2062, 2150, 2241, 2334

Offset

0,3

Links

Table of n, a(n) for n=0..50.

Crossrefs

Cf. A052115, A052116, A052118.

Sequence in context: A168350 A281151 A337722 * A033611 A033615 A122373

Adjacent sequences: A052114 A052115 A052116 * A052118 A052119 A052120

Keyword

nonn

Author

Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Jan 21 2000

Status

approved