OFFSET
0,2
COMMENTS
PROG
(Python)
from itertools import accumulate, repeat
def f(n, _): return int("".join(str(int(d)+3) for d in str(n)))
def aupton(nn): return list(accumulate(repeat(1, nn+1), f))
print(aupton(19)) # Michael S. Branicky, Mar 19 2022
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, May 08 2001
EXTENSIONS
More terms from Larry Reeves (larryr(AT)acm.org), May 11 2001
a(17) corrected and a(18), a(19) by Georg Fischer, Mar 19 2022
STATUS
approved