42527

Appears in sequences

• Structured heptagonal anti-diamond numbers (vertex structure 7).at n=22A100186
• a(n) = p^2*(p + 3)/2, where p = prime(n).at n=13A179546
• 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=50A233526
• a(n) = 4*n^3 - 3*n + 1.at n=22A280089
• a(n) = Sum_{k=0..floor(n/4)} Stirling2(k,n - 4*k).at n=45A357941