-172

Appears in sequences

• McKay-Thompson series of class 15B for Monster.at n=23A058509
• McKay-Thompson series of class 24C for Monster.at n=41A058573
• Determinant of the n X n matrix whose element (i,j) equals |i-j| (Mod 3).at n=58A071768
• a(n) = A077110(n) - n^2.at n=54A077111
• a(n) = sigma(n) - 4*phi(n).at n=58A079546
• A nonsense sequence.at n=79A089077
• McKay-Thompson series of class 24f for the Monster group with a(0) = -2.at n=23A093067
• a(1) = 4; then alternately add -4 and multiply by -2.at n=15A096406
• G.f. A(x) satisfies: 4^n/2 = Sum_{k=0..n} [x^k]A(x)^n and also satisfies: ((4+z)^n + z^n)/2 = Sum_{k=0..n} [x^k](A(x)+z*x)^n for all z, where [x^k]A(x)^n denotes the coefficient of x^k in A(x)^n.at n=12A100240
• Binomial transform of denominators in a zeta function.at n=8A106398
• The r-th term of the n-th row of the following array contains the sum of r successively decreasing integers beginning from n. 0<r<=n. e.g. the row corresponding to 4 contains 4, (3+2),{(1) +(0)+(-1)}, {(-2)+(-3)+(-4)+(-5)} ----> 4,5,0,-14 1 2 1 3 3 -3 4 5 0 -14 5 7 3 -10 -35 6 9 6 -6 -30 -69 ... Sequence contains the array by rows.at n=52A110425
• Sequence is {a(4,n)}, where a(m,n) is defined at sequence A110665.at n=10A110669
• Expansion of psi(q^5)/psi(q) in powers of q where psi() is a Ramanujan theta function.at n=23A116494
• Fibonacci central tridiagonal matrices as a triangular sequence from a recursive polynomial definition.at n=22A123974
• Expansion of q * chi(-q^3) * chi(-q^5) / ( chi(-q^2) * chi(-q^30) ) in powers of q where chi() is a Ramanujan theta function.at n=37A132967
• Riordan array (1/((1-2x)(1-x)^2), -x/(1-x)^2).at n=52A135552
• Expansion of phi(-x) / f(-x^4)^2 in powers of x where phi(), f() are Ramanujan theta functions.at n=25A137830
• a(n) = A140944(n+1) - 3*A140944(n).at n=30A140950
• Expansion of f(-x^4) * chi(x^5) / f(-x^5) in powers of x where f(), chi() are Ramanujan theta functions.at n=59A146164
• Expansion of eta(q) * eta(q^10)^3 / (eta(q^2) * eta(q^4) * eta(q^5) * eta(q^20)) in powers of q.at n=47A147702