21. The row sums are the first convolved Fibonacci numbers . 22. The scales are spirally arranged in fibonacci number ratios. 23. As with the book, this secret message made use of Fibonacci numbers for its encoding. 24. Now take two non-empty sets of distinct non-consecutive Fibonacci numbers and which have the same sum. 25. They named Fibonacci heaps after the Fibonacci numbers , which are used in their running time analysis. 26. There are many mathematical concepts named after Fibonacci because of a connection to the Fibonacci numbers . 27. The only nontrivial square Fibonacci number is 144. 28. Important special cases of continued fraction convergents include the Fibonacci numbers and solutions to Pell's equation. 29. The work is divided into sections proportioned according to the Fibonacci numbers from 1 to 144. 30. These also turn out to be Fibonacci numbers .
