23112

Appears in sequences

• a(n) = round(n*phi^18), where phi is the golden ratio, A001622.at n=4A004953
• a(n) = ceiling(n*phi^18), where phi is the golden ratio, A001622.at n=4A004973
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 38.at n=7A031716
• "BHK" (reversible, identity, unlabeled) transform of 1,0,1,0...(odds).at n=23A032089
• Number of partitions of n into parts not of the form 9k, 9k+4 or 9k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 3 are greater than 1.at n=49A035943
• Positive numbers n such that n is a multiple of (product of digits of n) * (sum of digits of n).at n=16A049102
• a(n) = (Fibonacci(2*n)-(-1)^n*Fibonacci(n))/2.at n=12A049602
• Numbers k such that the period of the continued fraction for sqrt(5)*k is 2.at n=37A065030
• Numbers divisible by the sum of factorials of their digits [A061602(n)] and also terminate in the sum of factorials of their digits.at n=18A071064
• Non-balanced numbers in A015771.at n=36A078549
• Number of (s(0), s(1), ..., s(n)) such that 0 < s(i) < 5 and |s(i) - s(i-1)| <= 1 for i = 1,2,...,n, s(0) = 2, s(n) = 4.at n=12A094292
• Numbers with at least two 3s in their prime signature.at n=55A109399
• Integers corresponding to rational knots in Conway's enumeration.at n=46A122495
• The n-th arithmetic derivative of 3^4.at n=8A129151
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 0, 1), (1, 0, 0), (1, 1, -1)}.at n=8A150193
• 12 times pentagonal numbers: a(n) = 6*n*(3*n-1).at n=36A153792
• Long leg B of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, s=a+b+c, s-+1 are primes.at n=14A155174
• 4 times the Lucas number A000032(n).at n=18A156279
• a(n) = 64*n^2 + 8.at n=18A158488
• Triangle read by rows: a(1,1)=1. a(m,n) = a(m-1,n) + (sum of all terms in row m-1), for n<m. a(m,m) = sum of all terms in row m-1.at n=31A159930