login
A249443
Numbers with digits in nondecreasing order and digital sum not larger than the product of the digits.
0
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 22, 23, 24, 25, 26, 27, 28, 29, 33, 34, 35, 36, 37, 38, 39, 44, 45, 46, 47, 48, 49, 55, 56, 57, 58, 59, 66, 67, 68, 69, 77, 78, 79, 88, 89, 99, 123, 124, 125, 126, 127, 128, 129, 133, 134, 135, 136, 137, 138, 139, 144, 145, 146, 147, 148, 149, 155, 156, 157, 158
OFFSET
1,3
COMMENTS
Intersection of A009994 and A062998.
Except for the initial 0, a subsequence of the zeroless numbers A052382.
The nonzero terms of this sequence correspond to a term of A061672 obtained by concatenation with A002275(A007954(a(n))-A007953(a(n))).
PROG
(PARI) is(n)={vecsort(n=digits(n))==n && normlp(n, 1)<=prod(i=1, #n, n[i])}
CROSSREFS
KEYWORD
nonn,base
AUTHOR
M. F. Hasler, Oct 29 2014
STATUS
approved