A130146 n appears k times, where k = last digit of n.

1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 12, 12, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19

Offset

1,2

Links

Table of n, a(n) for n=1..85.

Prog

(Python)
from itertools import count, islice
def A130146_gen(): # generator of terms
    yield from (n for n in count(1) for _ in range(n%10))
A130146_list = list(islice(A130146_gen(), 50)) # Chai Wah Wu, Nov 14 2022

Crossrefs

Cf. A010879, A001462.

Sequence in context: A123578 A087836 A087845 * A113764 A130148 A341510

Adjacent sequences: A130143 A130144 A130145 * A130147 A130148 A130149

Keyword

nonn,base

Author

Paul Curtz, Aug 02 2007

Status

approved