99968
domain: N
Appears in sequences
- Maximum value seen in the final n decimal digits of 2^j for all values of j.at n=4A060458
- Harmonic mean of digits is 8.at n=27A062185
- a(n) = 10*a(n-1) - 18*a(n-2) with a(0)=1, a(1)=5.at n=6A146965
- String of digits encountered in decimal expansion of successive ratios k/(k+1), treating only non-repeating expansions, with decimal point and leading and trailing zeros removed.at n=36A156703
- a(n) gives the number of conjugacy classes in the permutation group generated by transposition (1 2) and double n-cycle (1 3 5 7 ... 2n-1)(2 4 6 8 ... 2n). This group is a semidirect product formed by a cyclic group acting on an elementary abelian 2-group of rank n by cyclically permuting the factors.at n=20A178752
- a(n) is the largest 5-digit number with exactly n divisors, or a(n) = 0 if no such number exists.at n=31A182698
- Write n in binary and interpret as a decimal number; a(n) is this quantity minus n.at n=32A228071
- Write n in binary and interpret as a decimal number; a(n) is this quantity minus n.at n=33A228071
- Triangle read by rows: T(n,k) = A059384(n)/(A059384(k)*A059384(n-k)).at n=17A239633
- Triangle read by rows: T(n,k) = A059384(n)/(A059384(k)*A059384(n-k)).at n=18A239633
- G.f. A(x) satisfies: 1 = Sum_{n>=0} (-x)^n * (A(x)^n + (-1)^n)^n.at n=5A325574