[seqfan] Primes from Indices of Pi and E
Harvey P. Dale
hpd1 at nyu.edu
Mon Apr 23 21:40:52 CEST 2012
This sequence gives the indices at which a single digit of
Pi plus a single digit of E sum to a prime: 1,3,5,6,7,9,10,12,14,15,19 .
. . For example, the 5th digit of Pi is 5, the fifth digit of E is 2,
and 5+2 = 7. It is easy to generate other similar sequences. For
example, this sequence gives the indices starting at which the next ten
digits of Pi (read as a number) plus the next ten digits of E (again
read as a number) sum to a prime:
1,6,22,32,119,123,146,152,189,216,230,255 . . .
Is any of this worth putting into the OEIS?
Best,
Harvey
More information about the SeqFan
mailing list