33102

Appears in sequences

• Apart from two leading terms (which are present by convention), denominators of convergents to Pi (A002485 and A046947 give numerators).at n=6A002486
• Values of k for which there are no empty intervals when fractional part(m*Pi) for m = 1, ..., k is plotted along [ 0, 1 ] subdivided into k equal regions.at n=6A036417
• Greedy frac multiples of Pi: a(1)=1, Sum_{n>=1} frac(a(n)*Pi) = 1.at n=5A079938
• Number of decimal digits in the high-water marks of the terms of the continued fraction of the (base-10) Champernowne constant.at n=6A143534
• Number of n X n arrays of squares of integers summing to 6 with every element equal to at least one neighbor.at n=4A146197
• G.f.: A(x) = exp( Sum_{n>=1} A162552(n)^2*x^n/n ) where the l.g.f. of A162552 is the log of the characteristic function of the squares.at n=22A162553
• Number of 5-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.at n=14A187300
• G.f.: exp( Sum_{n>=1} 3 * Jacobsthal(n)^2 * x^n/n ), where Jacobsthal(n) = A001045(n).at n=9A211894
• Records in A224796.at n=47A224719
• Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) - p(j-1) <= 2.at n=17A224959
• Number of length n+4 0..7 arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=7A249655
• Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.at n=22A252252
• Numbers k such that R_k - 10 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=10A256711
• Numbers k such that there exists at least one integer in the interval [Pi*k - 1/k, Pi*k + 1/k].at n=25A265739
• Starts of runs of 3 consecutive Niven numbers in base 2 (A049445).at n=13A330932
• Starts of runs of 4 consecutive Niven numbers in base 2 (A049445).at n=1A330933
• a(n) is the denominator of the rational number with the smallest denominator that lies within 1/10^n of Pi.at n=9A360367
• Intersection of A002486 and A360367.at n=4A360370