32166

Appears in sequences

• Numbers k such that 10*3^k - 1 is prime.at n=44A005542
• Numbers k such that (k / sum of digits of k) and (k+1 / sum of digits of k+1) are both prime.at n=28A085775
• Group the triangular numbers so that the n-th group sum is a multiple of n. 1, (3, 6, 10, 15), (21), (28), (36, 45, 55, 66, 78), (91, 105, 120, 136, 153, 171, 190), ... Sequence contains n-th group sum divided by n.at n=28A114032
• Number of nX2 0..6 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=17A201066
• Number of equivalence classes of compositions of n where two compositions a,b are considered equivalent if the summands of a can be permuted into the summands of b with an even number of transpositions.at n=39A218004
• Number of length n+2 0..3 arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=5A253124
• T(n,k)=Number of length n+2 0..k arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=33A253129
• Number of length 6+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero.at n=2A253134
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 318", based on the 5-celled von Neumann neighborhood.at n=28A287628
• a(n) is the smallest number which can be represented as the sum of n distinct nonzero n-gonal numbers in exactly n ways, or 0 if no such number exists.at n=17A350405