OFFSET
0,2
COMMENTS
Rows give the successive first differences of A136104.
EXAMPLE
The top left corner of the array:
1, 3, 11, 55, 375, 3731
2, 8, 44, 320, 3356, 44012
6, 36, 276, 3036, 40656, 686016
30, 240, 2760, 37620, 645360, 12576720
210, 2520, 34860, 607740, 11931360, 277008480
2310, 32340, 572880, 11323620, 265077120, 7687412040
30030, 540540, 10750740, 253753500, 7422334920, 235239464460
PROG
(Scheme) (define (A276587 n) (A276586bi (A025581 n) (A002262 n))) ;; Code for A276586bi given in A276586.
(PARI) P(n)=prod(i=1, n, prime(i));
T(n, k) = sum(j=0, n, binomial(n, j)*P(k + j));
for(n=0, 10, for(k=0, n, print1(T(n - k, k), ", "); ); print(); ) \\ Indranil Ghosh, Apr 11 2017
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Antti Karttunen, Sep 18 2016
STATUS
approved