33081

Appears in sequences

• Numbers k such that there are 10 digits in k^2 and for each factor f of 10 (1, 2, 5) the sum of digit groupings of size f is a square.at n=2A153748
• G.f.: 1 + Sum_{n>=1} a(n)*x^n/(1 - x^n) = Product_{n>=1} (1 + x^n)^n.at n=20A300276
• Total number of occurrences of 7 in the (signed) displacement sets of all permutations of [n+7] divided by 7!.at n=5A324357