46345

Appears in sequences

• Apply partial sum operator twice to Fibonacci numbers.at n=20A001924
• Quadrinomial coefficients: C(2+n,n) + C(3+n,n) + C(4+n,n).at n=29A005718
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (F(2), F(3), ...), t = A014306.at n=40A024596
• a(0)=1, a(n) = Fibonacci(2n+4) - (2n+3).at n=10A027953
• Solution to the Dancing School Problem with n girls and n+2 boys: f(n,2).at n=18A079921
• Row sums of triangle A131336.at n=18A131337
• G.f. is the polynomial (Product_{k=1..31} (1 - x^(3*k)))/(1-x)^31.at n=4A162737
• Wiener index of a benzenoid consisting of a double-step zig-zag chain of n hexagons (n >= 2, s = 2123; see the Gutman et al. reference).at n=18A193395
• Primitive (squarefree) elements of A199745.at n=36A200145
• The least k such that the polynomial cyclotomic(k,x) has n different coefficients.at n=41A231611
• Squarefree numbers which yield zero when their prime factors are xored together.at n=27A235488
• a(n) is the smallest m such that p = n-th popular prime = A385503(n) is popular on the interval [2,m].at n=7A289661
• Squarefree products of k primes that are symmetrically distributed around their average. Case k = 4.at n=22A294751
• Average number of binary strings of length n with Levenshtein distance <= 3 from a uniform randomly sampled binary string of this length, rounded to nearest integer.at n=41A332918
• First occurrence of n in A345079, or -1 if n does not occur in A345079.at n=41A345080