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A367610
Comma transform of A367362.
1
11, 22, 33, 44, 55, 66, 77, 88, 99, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 21, 22, 23, 24, 25, 26, 27, 28, 29, 33, 31, 32, 33, 34, 35, 36, 37, 38, 39, 44, 41, 42, 43, 44, 45, 46, 47, 48, 49, 55, 51, 52, 53, 54, 55, 56, 57, 58, 59, 66, 61, 62, 63, 64, 65, 66, 67, 68, 69, 77, 71, 72, 73, 74, 75, 76, 77, 78, 79
OFFSET
1,1
COMMENTS
This is the second-order comma transform of the nonnegative integers.
See A367360 for further information.
LINKS
PROG
(Python)
from itertools import count, islice, pairwise
def S(): yield from (str(i) for i in count(0))
def C(): yield from (str(int(t[-1]+u[0])) for t, u in pairwise(S()))
def a(): yield from (int(t[-1]+u[0]) for t, u in pairwise(C()))
print(list(islice(a(), 80))) # Michael S. Branicky, Dec 11 2023
CROSSREFS
Sequence in context: A351877 A073729 A073730 * A087346 A060314 A337240
KEYWORD
nonn,base,look
AUTHOR
N. J. A. Sloane, Dec 11 2023
STATUS
approved