41489

Appears in sequences

• Numbers k with squares that are concatenations k^2 = x//y such that x is an anagram of y.at n=12A162945
• Start with a(1) = 1, a(2) = 3, then a(n)*2^k = a(n+1) + a(n+2), with 2^k the smallest power of 2 (k>0) such that all terms a(n) are positive integers.at n=47A233526
• Non-Brauer numbers.at n=24A349044