26490

Appears in sequences

• Expansion of Product_{m >= 1} (1-m*q^m)^12.at n=10A022672
• Starting positions of strings of three 9's in the decimal expansion of Pi.at n=31A083642
• Numbers n such that 65537 * 2^n - 1 is prime.at n=25A109993
• Number of base 18 circular n-digit numbers with adjacent digits differing by 2 or less.at n=6A124935
• Number of different fixed (possibly) disconnected pentominoes bounded (not necessarily tightly) by an n*n square.at n=4A162675
• Number of different fixed (possibly) disconnected n-ominoes bounded (not necessarily tightly) by an n*n square.at n=4A162676
• a(0) = 0, and for n > 0, a(n) = A002956(n) - A000041(n).at n=24A181887
• Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero.at n=29A190072
• Number of partitions of n that are separable by the least part; see Comments.at n=48A239515
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 2 3 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 2 3 6 or 7.at n=15A252107
• a(n) = prime(n) * prime(n^2) - prime(n^3).at n=13A291541
• Hash Parker numbers: Integers whose real 32nd root's first six nonzero digits (after the decimal point) rearranged in ascending order are equal to 234477.at n=16A309979
• Number of ways to write n as an ordered sum of 10 nonzero tetrahedral numbers.at n=52A341809
• Maximal coefficient of Product_{j=1..n} (1 - x^prime(j)).at n=32A350514
• a(n) is the maximal coefficient of (1 + x^a(1)) * (1 + x^a(1) + x^a(2)) * ... * (1 + x^a(1) + x^a(2) + ... + x^a(n-1)).at n=10A369791
• Expansion of (1/x) * Series_Reversion( x * (1 - x - x/(1 - x)^2) ).at n=6A378466