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A134182
10^n-th difference between cumulative prime and odd sums.
2
38, 14478, 2688838, 396250152, 52261798440, 6472980453364, 770530574266708
OFFSET
1,1
FORMULA
Beginning at 3, compute the sums of the prime and odd sequences at 10^n and take the difference.
a(n) = A099824(n)+prime(10^n+1)-(10^n*(10^n+2))-2. - Chai Wah Wu, Mar 30 2020
EXAMPLE
a(2)=14478 because at 10^2, 100 sums of primes and odds, the prime sum is 24678, the odd sum is 10200 and the difference is 14478
PROG
(UBASIC) 10 N=1:A=2 20 A=nxtprm(A):B=B+A 30 N=N+2:D=D+N 40 if C=9 then print A; N; B; D; B-D:stop 50 C=C+1: if C<10 then 20
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Enoch Haga, Oct 13 2007
STATUS
approved