A214279 Number of compositions of n where the difference between largest and smallest parts equals 10 and adjacent parts are unequal.

0, 2, 1, 8, 12, 23, 56, 100, 196, 380, 734, 1365, 2588, 4852, 8987, 16728, 30868, 56876, 104463, 191425, 349855, 638239, 1162173, 2112115, 3833245, 6946126, 12570162, 22719408, 41016345, 73967704, 133257636, 239847038, 431310105, 774970862, 1391362755

Offset

11,2

Links

Alois P. Heinz, Table of n, a(n) for n = 11..2000

Example

a(12) = 2: [11,1], [1,11].
a(13) = 1: [1,11,1].
a(14) = 8: [2,12], [2,11,1], [2,1,11], [12,2], [11,2,1], [11,1,2], [1,2,11], [1,11,2].
a(15) = 12: [3,11,1], [3,1,11], [2,1,11,1], [11,3,1], [11,1,3], [11,1,2,1], [1,3,11], [1,2,11,1], [1,2,1,11], [1,11,3], [1,11,2,1], [1,11,1,2].

Crossrefs

Column k=10 of A214269.

Sequence in context: A214276 A214277 A214278 * A360608 A151501 A102735

Adjacent sequences: A214276 A214277 A214278 * A214280 A214281 A214282

Keyword

nonn

Author

Alois P. Heinz, Jul 09 2012

Status

approved