233017
domain: N
Appears in sequences
- Strong pseudoprimes to base 2.at n=20A001262
- Positions of remoteness 2 in Beans-Don't-Talk.at n=10A005698
- Numbers n such that game of n X n Button Madness need have no solution; this lists only the primitive elements of the set.at n=21A007802
- a(n) = (1 - (-8)^n)/9.at n=6A014990
- Triangle of q-binomial coefficients for q=-8.at n=29A015118
- Triangle of q-binomial coefficients for q=-8.at n=34A015118
- Gaussian binomial coefficient [ n,6 ] for q = -8.at n=1A015331
- a(n) = 7*a(n-1) + 8*a(n-2), a(0) = 0, a(1) = 1.at n=7A015565
- Cyclotomic polynomials at x=8.at n=14A019326
- Cyclotomic polynomials at x=-8.at n=7A020507
- a(n) = n^6 - n^5 + n^4 - n^3 + n^2 - n + 1.at n=8A060888
- (Nearest integer to n^6/36) / 2.at n=15A061005
- Squarefree part of 2^n+1 : the smallest number such that a(n)*(2^n+1) is a square.at n=21A069111
- Triangular array read by rows: row s contains integers of the form (2^s+1)/(2^r+1) in order of increasing r <= s-1.at n=20A079665
- Duplicate of A015565.at n=7A082310
- a(n) = (n+1)^n/(n+2) - (-1)^n/(n+2).at n=7A083062
- a(n) = sigma_6(n^2)/sigma_3(n^2).at n=7A084220
- Erroneous version of A115016.at n=7A103494
- Expansion of x^3/(1 - 2*x + x^3 - 2*x^4) = x^3/( (1-2*x)*(1+x)*(1-x+x^2) ).at n=21A113405
- Numbers k such that A003313(k) = A003313(9*k).at n=0A116463