47586
domain: N
Appears in sequences
- Triangle giving a(n,k) = number of (n,k) labeled Greg trees (n >= 2, 0 <= k <= n-2).at n=17A048159
- Triangular numbers whose digits can be rearranged to form a substring of 123456789012345678901234....at n=19A068804
- Triangular numbers k*(k+1)/2 such that A068865(k) = k*(k+1)/2.at n=24A068866
- Triangular numbers whose sum of squared digits is also triangular.at n=21A094890
- Triangular numbers which are the sum of distinct double factorials (A006882).at n=25A115650
- Triangular numbers which have one or more occurrences of exactly five different digits.at n=36A241788
- Triangular numbers with strictly increasing product of digits.at n=25A246753
- Triangular numbers that are repdigits with length > 2 in some base.at n=23A274084
- Numbers that are the sum of six fourth powers in six or more ways.at n=12A345563
- Numbers that are the sum of six fourth powers in exactly six ways.at n=10A345818
- Triangular numbers which are products of five distinct primes.at n=14A357590
- Number of integer partitions of n with parts colored by {0, 1, 2} such that the sum of colors is congruent to 1 (mod 3).at n=18A390208