100300

Appears in sequences

• Multiples of 4 whose digits add to 4.at n=28A063997
• Number of 6-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.at n=30A187511
• Number of right triangles on a (n+1)X9 grid.at n=27A189813
• Numbers k such that digit sum of k = number of distinct prime factors of k.at n=33A285494
• a(n) is the total number of down-steps after the final up-step in all 3_1-Dyck paths of length 4*n (n up-steps and 3n down-steps).at n=6A334608
• Numbers with as many zeros as the sum of their digits.at n=20A354410