-348

Appears in sequences

• Expansion of eta(q^2)^12 / theta_3(q)^3 in powers of q.at n=37A029769
• McKay-Thompson series of class 24D for the Monster group.at n=58A058574
• Expansion of x/B(x) where B(x) is the g.f. for A002487.at n=67A073469
• a(n) = -n^2 - n + 72.at n=20A110678
• McKay-Thompson series of class 24h for the Monster group.at n=58A112165
• Semiprime(n)*semiprime(n+3) - semiprime(n+1)*semiprime(n+2), where semiprime(n) is the n-th semiprime.at n=25A118780
• Let A(0) = 1, B(0) = 0 and C(0) = 0. Let A(n+1) = - Sum_{k = 0..n} binomial(n,k)*C(k), B(n+1) = Sum_{k = 0..n} binomial(n,k)*A(k) and C(n+1) = Sum_{k = 0..n} binomial(n,k)*B(k). This entry gives the sequence B(n).at n=7A143631
• First differences of A154570.at n=11A156591
• Binomial transform of A164555.at n=12A167206
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of A203949.at n=51A203950
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 118", based on the 5-celled von Neumann neighborhood.at n=31A270188
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 118", based on the 5-celled von Neumann neighborhood.at n=50A270188
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 542", based on the 5-celled von Neumann neighborhood.at n=24A272812
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 629", based on the 5-celled von Neumann neighborhood.at n=33A273298
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 838", based on the 5-celled von Neumann neighborhood.at n=41A273682
• Expansion of f(-x) * f(-x^2)^4 / phi(x^2) in powers of x where phi(), f() are Ramanujan theta functions.at n=25A275372
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(6)/2.at n=44A279594
• The arithmetic function uhat(n,1,8).at n=57A291502
• G.f.: Im((i*x; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1).at n=46A292043
• a(0) = 0, a(n) = n + a(n-1) if n is odd, a(n) = -3*a(n/2) if n is even.at n=46A318303