A129600 - OEIS

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A129600

Array A(i,j) of binary run-length encoded product of i and j, read by ascending antidiagonals.

0, 1, 1, 2, 3, 2, 3, 4, 4, 3, 4, 7, 6, 7, 4, 5, 8, 8, 8, 8, 5, 6, 11, 12, 15, 12, 11, 6, 7, 12, 9, 16, 16, 9, 12, 7, 8, 15, 14, 23, 24, 23, 14, 15, 8, 9, 16, 16, 24, 19, 19, 24, 16, 16, 9, 10, 19, 24, 31, 28, 13, 28, 31, 24, 19, 10, 11, 20, 17, 32, 32, 17, 17, 32, 32, 17, 20, 11, 12

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

0,4

LINKS

Table of n, a(n) for n=0..78.

FORMULA

A(i,j) = A075158(((A075157(i)+1)*(A075157(j)+1)) - 1).

PROG

(MIT/GNU Scheme)

(define (A129600bi col row) (A075158 (-1+ (* (1+ (A075157 col)) (1+ (A075157 row))))))

(define (A129600 n) (A129600bi (A025581 n) (A002262 n)))

CROSSREFS