101123

Appears in sequences

• Smallest natural number requiring n letters in English.at n=45A001166
• Smallest positive integer requiring at least n letters (not including hyphens) to be spelled out in English.at n=47A045495
• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 3, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = a(2) = 1.at n=17A049942
• Number of distinct primes in the numerator of the 2^n sums generated from the set 1, 1/2, 1/3, ..., 1/n.at n=21A075189
• Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 6 ones in any 4 X 4 X 4 subtriangle.at n=13A153949
• First part "s" of A159000(n).at n=47A159001
• Diagonal sums of A164844.at n=5A180175
• a(n) is the smallest nonnegative number whose British English name has the letter "e" in the n-th position.at n=47A362121
• a(n) is the smallest positive number whose British English name has the letter "e" in the n-th position.at n=47A362122
• Number of odd chordless cycles of length >4 in the n-triangular grid graph.at n=8A362514