32880

Appears in sequences

• Starting from generation 8 add previous and next term yielding generation 9.at n=31A048455
• a(n) = Sum_{d|n} phi(d)*2^(n/d).at n=15A053635
• a(n) = Sum_{odd d|n} phi(d)*2^(n/d).at n=15A053636
• Number of ways of getting (at least) 5 of a kind, a straight flush, flush, 4 of a kind, full house, straight, 3 of a kind, 2 pair, a pair in wild-card poker with deuces wild.at n=3A057802
• McKay-Thompson series of class 21A for Monster.at n=27A058563
• Nearest integer to 1/sum(k>n,1/k^5).at n=9A083560
• Long leg of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=24A089548
• a(n) = 2*a(n-2)+4*a(n-4)+a(n-6), n>11.at n=24A107855
• Expansion of (-1+3*x-5*x^2+4*x^3) / ((1-2*x)*(2*x^2-1)*(x-1)^2).at n=14A114960
• Number of binary strings of length n with equal numbers of 0000 and 0111 substrings.at n=17A164152
• Number of permutations of 1..n with displacements restricted to {-4,-2,-1,0,3}.at n=15A189586
• Number of days after Jan 01 1000 such that the date written in the format DDMMYYYY is palindromic.at n=28A210885
• Antidiagonal sums of triangle A227372.at n=10A227373
• a(n) = n*(67*n - 89)/2.at n=32A263227
• p-INVERT of A016777, where p(S) = 1 - S - S^2.at n=7A289789
• a(n) = Sum_{d|n} 2^d*phi(2*n/d).at n=14A306898
• a(n) = n!^2*(Sum_{k=1..n} 1/k).at n=5A329930