78910

Appears in sequences

• Number of words of length n (n >= 1) over a two-letter alphabet having a minimal period of size n-1.at n=17A019310
• Cycle of 3 steps possible for 'concatenate a(n) and nextprime(a(n)) is a prime'.at n=10A034593
• a(n) is the concatenation of next n numbers (omit leading 0's).at n=3A053067
• Concatenation of the terms gives natural numbers in sequence such that N-th partial concatenation is a multiple of n.at n=4A109855
• Triangle read by rows: T(n,k) = value of the string of length k beginning at position n in the concatenation of natural numbers in decimal representation, 1<=k<=n.at n=25A162711
• Put the natural numbers together without spaces and read them five at a time advancing one space each time.at n=6A193493
• Sum of the asymmetry degrees of all compositions of n with parts in {1,4}.at n=33A276063
• Numbers whose decimal expansion is a concatenation of 4 consecutive increasing nonnegative numbers.at n=6A279204
• Square array A(m,n) = concatenation of { m, m+1, ..., m+n }, with m, n >= 1, read by falling antidiagonals.at n=42A285807
• Starts of runs of 3 consecutive Pell-Niven numbers (A352320).at n=34A352322