66651

Appears in sequences

• Larger of Smith brothers.at n=30A050220
• Berend Jan van der Zwaag's conjectured complete list of numbers that start different "expanding periodic loops" under the mapping described in A053392 and A060630.at n=18A103117
• Numbers k such that the k-th triangular number contains only digits {1,2,6}.at n=18A119104
• Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 5.at n=21A244534