A177363 a(n) contains the nonzero frequencies f(d) of digits d=0 .. 9 in all terms up to a(n-1) in concatenated form sorted with respect to d: f(0)//0//f(1)//1//...//f(9)//9. Initial term a(1)=4.
4, 14, 1124, 311234, 51222344, 6152336415, 816253743526, 9182738455461718, 12192831047556374819, 101611121031249566576839, 30231132123134115106677859, 50301162173144135126878869
Offset: 1
Examples
Four; one four; one one, two fours; three ones, one two, three fours; five ones, two twos, two threes, four fours; six ones, five twos, three threes, six fours, one five; etc.
Links
- J. Mulder, Table of n, a(n) for n = 1..25000
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