45475

Appears in sequences

• Second differences of Motzkin numbers (A001006).at n=11A026107
• For n weights, number of combinations when limited to two weights per pan.at n=25A037255
• Number of colorings of K_4 using at most n colors.at n=9A063842
• Diagonal sums of number triangle A106522.at n=18A106523
• 10-gonal numbers which are divisible by the sum of their digits.at n=36A119548
• Number of second differences of arrays of length 5 of numbers in 0..n.at n=12A228220
• 10-gonal (or decagonal) numbers with prime indices.at n=27A267217
• Numbers k such that A353802(k) / sigma(sigma(k)) is an integer > 1, where A353802(n) = Product_{p^e||n} sigma(sigma(p^e)).at n=31A353807