75757

Appears in sequences

• Palindromes of the form 3n + 1 where n is also a palindrome: palindromes arising in A083829.at n=26A083830
• Number of nondecreasing -n..n vectors of length 5 whose dot product with some nondecreasing -n..n vector equals 5.at n=10A226413
• Number of arrays of the median of three adjacent elements of some length 7 0..n array.at n=9A228742
• Triangle read by rows: T(n,k) is the number of simple connected graphs on n unlabeled nodes with burning number k = 1..ceiling(sqrt(n)).at n=20A369278