-124
domain: Z
Appears in sequences
- Expansion of e.g.f. tanh(sinh(x)*sin(x))/2 in odd powers of x^2.at n=1A009805
- Expansion of e.g.f.: cos(sin(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3+5/4!*x^4-10/5!*x^5...at n=6A012891
- Expansion of Product_{m>=1} (1+q^m)^(-4).at n=9A022599
- a(n) = 1 - n^3.at n=5A024001
- a(n) = 2^n - n^7.at n=2A024017
- 9th differences of primes.at n=2A036270
- Product_{k>=1} 1/(1 - x^k)^a(k) = 1 + 3x.at n=5A038064
- a(n) = -(n + 1)*(2*n^2 + n - 12)/6.at n=7A058372
- McKay-Thompson series of class 12e for Monster.at n=27A058493
- McKay-Thompson series of class 24c for the Monster group.at n=31A062243
- Multiplicative with a(p^e) = 1 - p^3.at n=4A063453
- Multiplicative with a(p^e) = 1 - p^3.at n=24A063453
- Alternating sum of primes: a(1) = A000040(1) = 2 and a(n) = a(n-1) + A000040(n)*(-1)^n for n > 1.at n=46A066033
- Expansion of (1-x)^(-1)/(1-x^2+2*x^3).at n=15A077884
- Expansion of (1-x)^(-1)/(1+x-2*x^2+2*x^3).at n=7A077900
- Expansion of (1-x)/(1+2*x-2*x^2-2*x^3).at n=5A078053
- The q expansion of Lambda^5, a Hauptmodul for Gamma_1(5).at n=10A078905
- a(n) = sigma(n) - 4*phi(n).at n=42A079546
- G.f. satisfies: A(x) = 1/(1 + x*A(x^2)) and also the continued fraction: 1 + x*A(x^3) = [1; 1/x, 1/x^2, 1/x^4, 1/x^8, ..., 1/x^(2^(n-1)), ...].at n=24A101912
- McKay-Thompson series of class 42C for the Monster group.at n=45A102314