39961

Appears in sequences

• Consider all ways of writing a number as p+2m^2 where p is 1 or a prime and m >= 0; sequence gives numbers that are expressible in at least 2 more ways than any smaller number.at n=22A016067
• Composite numbers not divisible by 2 which in base 4 contain their largest proper factor as a substring.at n=15A063145
• The number of isomorphism classes of Szasz (uniquely non-associative) groupoids of order n.at n=5A180043
• a(n) = 5*a(n-1) - 10*a(n-2) + 8*a(n-3) with a(0) = 2, a(1) = a(2) = 3.at n=15A247565
• Numerator of the limiting density of residues attained by the Fibonacci sequence modulo powers of the n-th prime.at n=40A350999