-139
domain: Z
Appears in sequences
- Stirling's formula: numerators of asymptotic series for Gamma function.at n=3A001163
- Numerators of the expansion of -W_{-1}(-e^(-1 - x^2/2)) where x > 0 and W_{-1} is the Lambert W function.at n=7A005447
- Unique attractor for (RIGHT then MOBIUS) transform.at n=49A007554
- McKay-Thompson series of class 16B for the Monster group.at n=30A029839
- Smallest (in magnitude) nonzero number m such that n!+m is prime.at n=59A053714
- 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=40A058030
- 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=38A058030
- McKay-Thompson series of class 20a for Monster.at n=8A058556
- a(n) = bin_prime_sum(fibonacci(A001651[n])), where fibonacci(A001651[n]) is A014437[n].at n=20A059878
- Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 3.at n=42A060022
- Alternating sum sigma(1)-sigma(2)+sigma(3)-sigma(4)+...+((-1)^(n+1))*sigma(n).at n=23A068762
- 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=33A073579
- a(n) = A077118(n) - n^3.at n=47A077119
- Expansion of (1-x)/(1+x^2+x^3).at n=42A078032
- a(n)=1+(1/12)(n*(n+1)*(n+3)*(4-n)).at n=7A080260
- McKay-Thompson series of class 16d for the Monster group.at n=30A082304
- A measure of how close r^n is to an integer where r is the real root of x^3-x-1, i.e.. r = (1/2 + sqrt(23/108))^(1/3) + (1/2 - sqrt(23/108))^(1/3) = 1.3247.... (Higher absolute value of a(n) means closer, negative means less than closest integer.)at n=19A084252
- a(n) = floor( prime(n-1)*A036263(n-2)/ A001223(n-1)).at n=57A094900
- Array T(r,c) read by antidiagonals: values of triangle A098493 interpreted as polynomials, r >= 0.at n=48A098495
- Coefficients of the C-Rogers-Selberg identity.at n=33A104410