26897

Appears in sequences

• Odd composites (including 1 in the count) where the number 1 mod 4 equals the number 3 mod 4.at n=10A093180
• a(n) = 16*n^2 + 1.at n=40A108211
• Number of planar partitions of n with all part sizes distinct.at n=37A117433
• Numbers that appear exactly five times in A101402. (Also indices of fives in A101403.).at n=18A129117
• Number of strings of numbers x(i=1..n) in 0..2 with sum i^2*x(i) equal to n^2*2.at n=20A183946
• Numbers of the form n^2 + 1 without prime divisors of the form a^2 + 1.at n=14A217279
• Number of integer partitions of n with a unique non-co-mode.at n=49A363129