45696

Appears in sequences

• Infinitary sociable numbers (smallest member of cycle).at n=5A004607
• Distinct even elements in the 5-Pascal triangle A028313.at n=43A028320
• Even elements to the right of the central elements of the 5-Pascal triangle A028313.at n=35A028321
• a(n) = binomial(n+5,5)*(n+3)/3.at n=13A040977
• Partial sums of A051740.at n=13A051877
• a(n) = n*(n-1)*(n-3)*(n-5).at n=17A062765
• a(1) = 2, a(n+1) is the smallest multiple of a(n) such that the digits are alternately odd and even. The unit digit is always even and parity alternates.at n=7A078227
• Triangle read by rows: T(n,k) = number of peakless Motzkin paths of length n containing k UHH...HD's, where U=(1,1), D=(1,-1) and H=(1,0) (can be easily expressed using RNA secondary structure terminology).at n=60A089741
• Triangle read by rows: T(n,k) is the number of Motzkin paths of length n having k high humps. (A hump is an upstep followed by 0 or more flatsteps followed by a downstep. A high hump is a hump that starts at a level higher than zero.).at n=46A097888
• Triangle read by rows: T(n,k) is the number of alternating max-precedes-min permutations on [n+2] with 1 in position k+2, 0<=k<=n.at n=51A104346
• Number of n-colorings of the octahedral graph.at n=8A115400
• Sum of jump-lengths of all binary trees with n edges.at n=9A127533
• Number of primes in the open interval between successive tribonacci numbers.at n=25A131354
• Numbers with prime factorization pqrs^7.at n=8A190473
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=21A208376
• Square array A(n,k), n>=1, k>=1, read by antidiagonals: A(n,k) is the number of n-colorings of the rhombic hexagonal square grid graph RH_(k,k).at n=24A212163
• Square array A(n,k), n>=1, k>=1, read by antidiagonals: A(n,k) is the number of n-colorings of the staggered hexagonal square grid graph SH_(k,k).at n=24A212195
• Triangle T(n,k) represents the coefficients of (x^12*d/dx)^n, where n>=1; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=33A223514
• Boustrophedon transform of composite numbers.at n=8A230954
• a(n) = binomial(3*n,n)*(5*n+2)/(2*n+1).at n=6A249691