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 A358211 Self-locating strings within e: numbers k such that the string k is at position k (after the decimal point) in the decimal digits of e, where 7 is the 0th digit. 0
 1, 8, 215, 374, 614, 849, 4142, 7945, 5964055, 8008913, 7131377227, 8829981707 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..11. EXAMPLE The first two terms 1 and 8 are depicted here: Position: 0123456789... Digits of e: 2.7182818284... .^......^.... 1 is the first term because 1 is in position 1 after the decimal point (when starting to count with 0). 8 is the second term because 8 is in position 8 etc. PROG (Python) # after Michael S. Branicky in A064810 # First get a file with e digits, e.g. https://www4.baumann.at/downloads/e.txt with open('e.txt', 'r') as f: digits_of_e = f.readline()[2:] def afind(): global digits_of_e for k in range(len(digits_of_e)): s = str(k) if digits_of_e[k:k+len(s)] == s: print(k, end=", ") afind() CROSSREFS Cf. A001113, A064810, A205648. Sequence in context: A024288 A081794 A221042 * A247032 A027646 A224096 Adjacent sequences: A358208 A358209 A358210 * A358212 A358213 A358214 KEYWORD base,nonn,more AUTHOR Chris Baumann, Nov 04 2022 EXTENSIONS a(9)-a(12) from Michael S. Branicky, Nov 04 2022 STATUS approved

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Last modified September 11 08:26 EDT 2024. Contains 375814 sequences. (Running on oeis4.)