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A173815 Sum of the numbers in the n-th row of Gilbreath's triangle (A036261). 1
1, 3, 3, 9, 7, 9, 7, 9, 11, 19, 17, 15, 9, 15, 13, 29, 23, 27, 33, 23, 29, 21, 31, 31, 35, 25, 27, 27, 41, 89, 57, 67, 51, 63, 49, 49, 49, 43, 39, 51, 39, 63, 47, 65, 45, 75, 95, 71, 67, 79, 59, 61, 59, 73, 61, 65, 77, 73, 75, 63, 95, 81, 87, 71, 103, 107, 85, 85, 101, 87, 71 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..71.

MAPLE

A036261 := proc(n, k) option remember ; if k = n then ithprime(n+1)-ithprime(n) ; else abs(procname(n, k+1)-procname(n-1, k)) ; end if; end proc: A173815 := proc(n) add(A036261(n, k), k=1..n) ; end proc: seq(A173815(n), n=1..90) ; # R. J. Mathar, Mar 01 2010

CROSSREFS

Cf. A036261, A036262.

Sequence in context: A197031 A065483 A019745 * A188615 A328566 A155686

Adjacent sequences:  A173812 A173813 A173814 * A173816 A173817 A173818

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Feb 25 2010

EXTENSIONS

a(10), a(22) etc. corrected and sequence extended by R. J. Mathar, Mar 01 2010

STATUS

approved

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Last modified January 29 16:58 EST 2020. Contains 331347 sequences. (Running on oeis4.)