24524

Appears in sequences

• Numbers whose base-7 representation contains exactly four 3's.at n=34A043408
• Largest eigenvalue, rounded to the nearest integer, of a rank n matrix of 1..n^2 filled successively along antidiagonals (A069480).at n=34A072332
• Let u(1)=u(2)=1, u(3)=2n, u(k) = abs(u(k-1)-u(k-2)-u(k-3)) and M(k) = Max_{i<=i<=k} u(i), then for any k >= A078109(n), M(k) = floor(sqrt(k + a(n))).at n=24A078108
• Number of {2-1-3, 2'^e-31}-avoiding permutations of size n (see definition in the Elizalde paper).at n=11A143017
• a(0) = 12, after which, if (2*a(n-1)) - 1 = product_{k >= 1} (p_k)^(c_k) then a(n) = product_{k >= 1} (p_{k-1})^(c_k), where p_k indicates the k-th prime, A000040(k).at n=38A246343
• Numbers k where k^2 is an anagram of (k+2)^2.at n=13A261749
• Triangle read by rows: T(n,k) is the number of chains of length k in the poset of all arithmetic progressions contained in {1,...,n} of length in the range [1..n-1], ordered by inclusion.at n=50A347580
• Even numbers 2m such that A352612(2m) = A103131(2m).at n=34A352587