A134564 Array read by antidiagonals: row n consists of numbers whose 4th-order Zeckendorf representation has exactly n terms.
1, 2, 6, 3, 8, 25, 4, 9, 32, 94, 5, 11, 34, 120, 344, 7, 12, 35, 127, 439, 1251, 10, 13, 42, 129, 465, 1596, 4543, 14, 15, 44, 130, 472, 1691
Offset: 1
Examples
Northwest corner: 1 2 3 4 5 7 10 14 19 26 36 50 69 ... 6 8 9 11 12 13 ... 25 32 34 35 42 44 ... 94 120 127 129 130 156 ... For example, 32 = 26 + 5 + 1 has 3 terms, so 32 is in row 3.
Links
- Clark Kimberling, The Zeckendorf array equals the Wythoff array, Fibonacci Quarterly 33 (1995) 3-8.
- Index entries for sequences that are permutations of the natural numbers
Formula
Row 1, A035513, is the 4th-order Zeckendorf basis, b(1), b(2), b(3), .... Every positive integer has a unique 4th-order Zeckendorf representation b(i(1)) + b(i(2)) + ... + b(i(n)), where |i(h) - i(j)| >= 4 for distinct h and j.
Comments