22495

Appears in sequences

• Strong pseudoprimes to base 54.at n=14A020280
• s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = A000201 (lower Wythoff sequence), t = A001950 (upper Wythoff sequence).at n=38A024686
• Numbers whose base-4 representation contains exactly four 1's and four 3's.at n=2A045133
• Number of ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n.at n=29A071778
• Number of partitions of n such that if k is the largest part, then k-2 occurs as a part.at n=46A119907
• a(n) = 25*n^2 - 5.at n=29A158446
• Odd numbers n such that the sum of the binary digits of n and n^2 both equal 12.at n=20A261593
• Numbers k such that k!6 + 24 is prime, where k!6 is the sextuple factorial number (A085158 ).at n=24A288446
• Number of square plane partitions of n with distinct row sums and distinct column sums.at n=36A306320
• a(n) = (1/6) * 2^(-n) * n! * [x^n] Exp(2*x, 1)*(Exp(2*x, 3) - 1), where Exp(x, m) = Sum_{k>=0} (x^k / k!)^m.at n=11A344559