24498

Appears in sequences

• Number of minimal covers of an (n + 1)-set by a collection of n nonempty subsets, a(n) = A035348(n,n-1).at n=10A003469
• a(n) = Sum_{i=0..n} T(i,n-i), array T as in A048149.at n=35A049712
• a(n) = n^3 + prime(n).at n=28A089620
• a(n) = 25 + floor( Sum_{j=1..n-1} a(j)/2 ).at n=17A120148
• Numbers k such that the decimal digits of k*(k+1) are a permutation of those of k*(k-1).at n=13A181775
• Hyper-Wiener index of a benzenoid consisting of a zig-zag chain of n hexagons (s=13; see the Gutman et al. reference).at n=8A193394
• Triangle of coefficients of polynomials u(n,x) jointly generated with A209776; see the Formula section.at n=50A209775
• Number of (n+1) X (2+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally.at n=5A232902
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally.at n=26A232908
• Number of (6+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally.at n=1A232914
• a(n) = prime(n+1)^2 - prime(n).at n=35A261465
• Numbers k such that 397*2^k+1 is prime.at n=23A323043
• G.f. A(x) satisfies A(x) = 1 / ((1 + x) * (1 - x * (1 + x) * A(x^2))).at n=18A367716