37746

Appears in sequences

• Number of unrooted planar 2-constellations with n digons. Also number of n-edge unrooted planar Eulerian maps with bicolored faces.at n=8A090371
• Number of partitions p of n such that the number of numbers having multiplicity 1 in p is a part or the number of numbers having multiplicity > 1 is a part.at n=41A239737
• Numbers k such that the sum of the numbers from 1 to k and that from 1 to k+1 share the same sum of divisors.at n=21A375819
• a(n) is the least k such that the sum of the first k numbers with n prime factors, counted with multiplicity, is prime.at n=21A376480
• Number of dessins d'enfants D(n,g) with n edges of genus g, read by rows.at n=20A380453
• a(n) is the largest integer k such that there is an integer m with exactly n nonunitary prime factors and m + A005117(i) is squarefree for 1 <= i <= k.at n=24A390138