25177

Appears in sequences

• s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (odd natural numbers), t = A001950 (upper Wythoff sequence).at n=37A025114
• Numerators of continued fraction convergents to sqrt(304).at n=10A041572
• Interprimes which are of the form s*prime, s=17.at n=13A075292
• Partial sums of A038580.at n=22A086749
• Number of partitions p of n such that 2*(number of even numbers in p) < (number of odd numbers in p).at n=48A241651
• Number of strict compositions of n with all adjacent parts (x, y) satisfying x <= 2y and y <= 2x.at n=49A342342
• a(n) = Sum_{j=1..n} Sum_{k=1..n} tau(j*k).at n=44A372674
• Number of rooted ordered trees with n nodes such that the degree of each node is less than or equal to its depth plus one.at n=13A382060
• Coefficient of x^n in the expansion of ( (1-x+x^4) / (1-x) )^n.at n=17A387345