30198

Appears in sequences

• Number of trees of diameter 8.at n=9A000306
• Number of basis partitions of n+49 with Durfee square size 7.at n=29A053802
• Euler transform of reduced totient function psi(n), cf. A002322.at n=23A061257
• Numbers k such that 11*13^k + 2 is prime.at n=17A084074
• Triangle T(n,m) (read as T(1,1); T(2,1), T(2,2); T(3,1), T(3,2), T(3,3);) Number of distinct non-recursive Catalan Automorphisms whose minimum clause-representation requires examination of n nodes in total, divided into m non-default clauses.at n=10A089831
• a(n) = A000108(n)*(A000142(n+1)-1).at n=5A089833
• a(n) is the number of simple linear diagrams with n+1 chords.at n=6A278991
• Number of distinct nonnegative rational numbers that can be obtained in n steps by a straight-line program (SLP) starting at 1 using addition, subtraction, multiplication and division.at n=7A288850