-199
domain: Z
Appears in sequences
- Numerators of coefficients for repeated integration.at n=3A002683
- Numerators of coefficients for repeated integration.at n=5A002687
- Imaginary Rabbits: imaginary part of a(0)=i; a(1)=-i; a(n) = a(n-1) + i*a(n-2), with i = sqrt(-1).at n=20A014291
- Shifts left two places under BIN1 transform.at n=11A052341
- Signed distance of primes from LCM(1,...,x) being closest to it. Arguments x were selected from A000961 (powers of primes including primes) in order to use distinct values of LCM exactly once. When both closest primes are in the same distance, then negative were used.at n=54A058030
- McKay-Thompson series of class 30A for Monster.at n=33A058612
- Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 3.at n=50A060022
- Fibonacci-type sequence based on subtraction: a(0) = 1, a(1) = 2 and a(n) = a(n-2) - a(n-1).at n=12A061084
- Numerators of coefficients in Airy-type asymptotic expansion.at n=0A069244
- Signed primes: if prime(n) even, a(n) = 0; if prime(n) == 1 (mod 4), a(n) = prime(n); if prime(n) == -1 (mod 4), a(n) = -prime(n).at n=45A073579
- 5th differences of partition numbers A000041.at n=36A081095
- Array T(r,c) read by antidiagonals: values of triangle A098493 interpreted as polynomials, r >= 0.at n=50A098495
- Expansion of (1-x^2)/(1-x-x^2+x^3+x^4).at n=21A101496
- Self-convolution 4th power equals A106220, which consists entirely of digits {0,1,2,3} after the initial terms {1,4}.at n=8A106221
- Let p_n be the polynomial of degree n-1 that interpolates the first n primes (i.e., p_n(i) = prime(i) for 1 <= i <= n.) Then a(n) = p_n(n+1)/2.at n=13A121049
- a(n) = -n^2 + 9*n + 53.at n=21A126665
- Table read by antidiagonals: B(n,m) is the numerator of the Bernoulli polynomial of order m and degree n evaluated at x=0.at n=82A126853
- Expansion of q^(-3/8)* eta(q)^7* eta(q^4)^2/ eta(q^2)^3 in powers of q.at n=65A128713
- Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1).at n=42A129396
- a(n) = (5*2^(n+2) - 3*n*2^n - 2*(-1)^n) / 18.at n=9A139790