A184259 Number of strings of numbers x(i=1..4) in 0..n with sum i^3*x(i) equal to 64*n

1, 2, 2, 3, 4, 5, 8, 13, 17, 22, 26, 32, 43, 51, 64, 80, 93, 110, 124, 144, 167, 189, 216, 247, 276, 310, 342, 379, 422, 464, 512, 565, 617, 674, 728, 790, 860, 925, 1000, 1082, 1160, 1247, 1330, 1423, 1523, 1621, 1728, 1844, 1958, 2079, 2198, 2326, 2464, 2598, 2744

Offset

1,2

Comments

Row 4 of A184257

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Formula

Empirical: a(n)=2*a(n-1)-a(n-2)+a(n-8)-2*a(n-9)+a(n-10)+a(n-64)-2*a(n-65)+a(n-66)-a(n-72)+2*a(n-73)-a(n-74)

Example

All solutions for n=5
..2....0....5....4
..1....0....4....2
..2....0....1....4
..4....5....4....3

Crossrefs

Sequence in context: A285261 A100483 A182613 * A014535 A210642 A263140

Adjacent sequences: A184256 A184257 A184258 * A184260 A184261 A184262

Keyword

nonn

Author

R. H. Hardin Jan 10 2011

Status

approved