147153domain: NAppears in sequencesNumbers k such that A099850(k) is divisible by k.at n=9A099851Triangular numbers T such that T+10 is the next prime after T.at n=21A129540Smallest triangular number with exactly n anagrams that are triangular numbers.at n=4A166596a(n) = A185128(n) + A185129(n).at n=10A185243